X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/2e57a9efc538d71bda72c6c1b0acd6bd8ad2b771..423d529ccb0dc5f8d8b41598581723159f07bb52:/src/common/db.cpp

diff --git a/src/common/db.cpp b/src/common/db.cpp
index 0b06c0497e..7c27289e08 100644
--- a/src/common/db.cpp
+++ b/src/common/db.cpp
@@ -18,25 +18,13 @@
 // Created:     9.96
 // RCS-ID:      $Id$
 // Copyright:   (c) 1996 Remstar International, Inc.
-// Licence:     wxWindows licence, plus:
-// Notice:      This class library and its intellectual design are free of charge for use,
-//              modification, enhancement, debugging under the following conditions:
-//              1) These classes may only be used as part of the implementation of a
-//                 wxWindows-based application
-//              2) All enhancements and bug fixes are to be submitted back to the wxWindows
-//                 user groups free of all charges for use with the wxWindows library.
-//              3) These classes may not be distributed as part of any other class library,
-//                 DLL, text (written or electronic), other than a complete distribution of
-//                 the wxWindows GUI development toolkit.
+// Licence:     wxWindows licence
 ///////////////////////////////////////////////////////////////////////////////
 
 /*
 // SYNOPSIS START
 // SYNOPSIS STOP
 */
-#ifdef __GNUG__
-    #pragma implementation "db.h"
-#endif
 
 #include "wx/wxprec.h"
 
@@ -53,9 +41,6 @@
     #include "wx/object.h"
     #include "wx/list.h"
     #include "wx/utils.h"
-    #if wxUSE_GUI
-        #include "wx/msgdlg.h"
-    #endif
     #include "wx/log.h"
 #endif
 #include "wx/filefn.h"
@@ -71,8 +56,11 @@
 
 #include "wx/db.h"
 
-WXDLLEXPORT_DATA(wxDbList*) PtrBegDbList = 0;
+// DLL options compatibility check:
+#include "wx/app.h"
+WX_CHECK_BUILD_OPTIONS("wxODBC")
 
+WXDLLIMPEXP_DATA_ODBC(wxDbList*) PtrBegDbList = 0;
 
 wxChar const *SQL_LOG_FILENAME         = wxT("sqllog.txt");
 wxChar const *SQL_CATALOG_FILENAME     = wxT("catalog.txt");
@@ -94,7 +82,7 @@ static wxString SQLLOGfn = SQL_LOG_FILENAME;
 // will overwrite the errors of the previously destroyed wxDb object in
 // this variable.  NOTE: This occurs during a CLOSE, not a FREEing of the
 // connection
-wxChar DBerrorList[DB_MAX_ERROR_HISTORY][DB_MAX_ERROR_MSG_LEN];
+wxChar DBerrorList[DB_MAX_ERROR_HISTORY][DB_MAX_ERROR_MSG_LEN+1];
 
 
 // This type defines the return row-struct form
@@ -115,7 +103,7 @@ typedef struct
 wxDbConnectInf::wxDbConnectInf()
 {
     Henv = 0;
-    freeHenvOnDestroy = FALSE;
+    freeHenvOnDestroy = false;
 
     Initialize();
 }  // Constructor
@@ -127,7 +115,7 @@ wxDbConnectInf::wxDbConnectInf(HENV henv, const wxString &dsn, const wxString &u
                        const wxString &fileType, const wxString &description)
 {
     Henv = 0;
-    freeHenvOnDestroy = FALSE;
+    freeHenvOnDestroy = false;
 
     Initialize();
 
@@ -158,7 +146,7 @@ wxDbConnectInf::~wxDbConnectInf()
 /********** wxDbConnectInf::Initialize() **********/
 bool wxDbConnectInf::Initialize()
 {
-    freeHenvOnDestroy = FALSE;
+    freeHenvOnDestroy = false;
 
     if (freeHenvOnDestroy && Henv)
         FreeHenv();
@@ -167,11 +155,14 @@ bool wxDbConnectInf::Initialize()
     Dsn[0] = 0;
     Uid[0] = 0;
     AuthStr[0] = 0;
+    ConnectionStr[0] = 0;
     Description.Empty();
     FileType.Empty();
     DefaultDir.Empty();
 
-    return TRUE;
+    useConnectionStr = false;
+
+    return true;
 }  // wxDbConnectInf::Initialize()
 
 
@@ -185,13 +176,13 @@ bool wxDbConnectInf::AllocHenv()
     // Initialize the ODBC Environment for Database Operations
     if (SQLAllocEnv(&Henv) != SQL_SUCCESS)
     {
-        wxLogDebug(wxT("A problem occured while trying to get a connection to the data source"));
-        return FALSE;
+        wxLogDebug(wxT("A problem occurred while trying to get a connection to the data source"));
+        return false;
     }
 
-    freeHenvOnDestroy = TRUE;
+    freeHenvOnDestroy = true;
 
-    return TRUE;
+    return true;
 }  // wxDbConnectInf::AllocHenv()
 
 
@@ -203,7 +194,7 @@ void wxDbConnectInf::FreeHenv()
         SQLFreeEnv(Henv);
 
     Henv = 0;
-    freeHenvOnDestroy = FALSE;
+    freeHenvOnDestroy = false;
 
 }  // wxDbConnectInf::FreeHenv()
 
@@ -212,14 +203,16 @@ void wxDbConnectInf::SetDsn(const wxString &dsn)
 {
     wxASSERT(dsn.Length() < sizeof(Dsn));
 
-    wxStrcpy(Dsn,dsn);
+    wxStrncpy(Dsn, dsn, sizeof(Dsn)-1);
+    Dsn[sizeof(Dsn)-1] = 0;  // Prevent buffer overrun
 }  // wxDbConnectInf::SetDsn()
 
 
 void wxDbConnectInf::SetUserID(const wxString &uid)
 {
     wxASSERT(uid.Length() < sizeof(Uid));
-    wxStrcpy(Uid,uid);
+    wxStrncpy(Uid, uid, sizeof(Uid)-1);
+    Uid[sizeof(Uid)-1] = 0;  // Prevent buffer overrun
 }  // wxDbConnectInf::SetUserID()
 
 
@@ -227,9 +220,19 @@ void wxDbConnectInf::SetPassword(const wxString &password)
 {
     wxASSERT(password.Length() < sizeof(AuthStr));
 
-    wxStrcpy(AuthStr,password);
+    wxStrncpy(AuthStr, password, sizeof(AuthStr)-1);
+    AuthStr[sizeof(AuthStr)-1] = 0;  // Prevent buffer overrun
 }  // wxDbConnectInf::SetPassword()
 
+void wxDbConnectInf::SetConnectionStr(const wxString &connectStr)
+{
+    wxASSERT(connectStr.Length() < sizeof(ConnectionStr));
+
+    useConnectionStr = wxStrlen(connectStr) > 0;
+
+    wxStrncpy(ConnectionStr, connectStr, sizeof(ConnectionStr)-1);
+    ConnectionStr[sizeof(ConnectionStr)-1] = 0;  // Prevent buffer overrun
+}  // wxDbConnectInf::SetConnectionStr()
 
 
 /********** wxDbColFor Constructor **********/
@@ -239,11 +242,6 @@ wxDbColFor::wxDbColFor()
 }  // wxDbColFor::wxDbColFor()
 
 
-wxDbColFor::~wxDbColFor()
-{
-}  // wxDbColFor::~wxDbColFor()
-
-
 /********** wxDbColFor::Initialize() **********/
 void wxDbColFor::Initialize()
 {
@@ -264,7 +262,7 @@ void wxDbColFor::Initialize()
 
 /********** wxDbColFor::Format() **********/
 int wxDbColFor::Format(int Nation, int dbDataType, SWORD sqlDataType,
-                       short columnSize, short decimalDigits)
+                       short columnLength, short decimalDigits)
 {
     // ----------------------------------------------------------------------------------------
     // -- 19991224 : mj10777 : Create
@@ -286,14 +284,23 @@ int wxDbColFor::Format(int Nation, int dbDataType, SWORD sqlDataType,
 
     if (i_dbDataType == 0)                                        // Filter unsupported dbDataTypes
     {
-        if ((i_sqlDataType == SQL_VARCHAR) || (i_sqlDataType == SQL_LONGVARCHAR))
+        if ((i_sqlDataType == SQL_VARCHAR)
+#if wxUSE_UNICODE
+    #if defined(SQL_WCHAR)
+            || (i_sqlDataType == SQL_WCHAR) 
+    #endif
+    #if defined(SQL_WVARCHAR)
+            || (i_sqlDataType == SQL_WVARCHAR)
+    #endif
+#endif
+            || (i_sqlDataType == SQL_LONGVARCHAR))
             i_dbDataType = DB_DATA_TYPE_VARCHAR;
         if ((i_sqlDataType == SQL_C_DATE) || (i_sqlDataType == SQL_C_TIMESTAMP))
             i_dbDataType = DB_DATA_TYPE_DATE;
         if (i_sqlDataType == SQL_C_BIT)
             i_dbDataType = DB_DATA_TYPE_INTEGER;
         if (i_sqlDataType == SQL_NUMERIC)
-            i_dbDataType = DB_DATA_TYPE_VARCHAR;
+            i_dbDataType = DB_DATA_TYPE_VARCHAR;   // glt - ??? is this right?
         if (i_sqlDataType == SQL_REAL)
             i_dbDataType = DB_DATA_TYPE_FLOAT;
         if (i_sqlDataType == SQL_C_BINARY)
@@ -316,9 +323,8 @@ int wxDbColFor::Format(int Nation, int dbDataType, SWORD sqlDataType,
         case DB_DATA_TYPE_FLOAT:
             if (decimalDigits == 0)
                 decimalDigits = 2;
-            tempStr = wxT("%");
-            tempStr.Printf(wxT("%s%d.%d"),tempStr.c_str(),columnSize,decimalDigits);
-            s_Field.Printf(wxT("%sf"),tempStr.c_str());
+            tempStr.Printf(wxT("%%%d.%d"), columnLength, decimalDigits);
+            s_Field.Printf(wxT("%sf"), tempStr.c_str());
             break;
         case DB_DATA_TYPE_DATE:
             if (i_Nation == 0)      // timestamp       YYYY-MM-DD HH:MM:SS.SSS (tested for SYBASE)
@@ -343,17 +349,16 @@ int wxDbColFor::Format(int Nation, int dbDataType, SWORD sqlDataType,
             }
             break;
           case DB_DATA_TYPE_BLOB:
-            s_Field.Printf(wxT("Unable to format(%d)-SQL(%d)"),dbDataType,sqlDataType);        //
+            s_Field.Printf(wxT("Unable to format(%d)-SQL(%d)"), dbDataType,sqlDataType);        //
                 break;
         default:
-            s_Field.Printf(wxT("Unknown Format(%d)-SQL(%d)"),dbDataType,sqlDataType);        //
+            s_Field.Printf(wxT("Unknown Format(%d)-SQL(%d)"), dbDataType,sqlDataType);        //
             break;
     };
     return TRUE;
 }  // wxDbColFor::Format()
 
 
-
 /********** wxDbColInf Constructor **********/
 wxDbColInf::wxDbColInf()
 {
@@ -378,8 +383,8 @@ bool wxDbColInf::Initialize()
     colName[0]      = 0;
     sqlDataType     = 0;
     typeName[0]     = 0;
-    columnSize      = 0;
-    bufferLength    = 0;
+    columnLength    = 0;
+    bufferSize      = 0;
     decimalDigits   = 0;
     numPrecRadix    = 0;
     nullable        = 0;
@@ -391,7 +396,7 @@ bool wxDbColInf::Initialize()
     FkTableName[0]  = 0;
     pColFor         = NULL;
 
-    return TRUE;
+    return true;
 }  // wxDbColInf::Initialize()
 
 
@@ -419,7 +424,7 @@ bool wxDbTableInf::Initialize()
     numCols         = 0;
     pColInf         = NULL;
 
-    return TRUE;
+    return true;
 }  // wxDbTableInf::Initialize()
 
 
@@ -447,7 +452,7 @@ bool wxDbInf::Initialize()
     numTables       = 0;
     pTableInf       = NULL;
 
-    return TRUE;
+    return true;
 }  // wxDbInf::Initialize()
 
 
@@ -528,7 +533,7 @@ void wxDb::initialize()
     typeInfBlob.MaximumScale  = 0;
 
     // Error reporting is turned OFF by default
-    silent = TRUE;
+    silent = true;
 
     // Allocate a data source connection handle
     if (SQLAllocConnect(henv, &hdbc) != SQL_SUCCESS)
@@ -538,8 +543,9 @@ void wxDb::initialize()
     DB_STATUS = 0;
 
     // Mark database as not open as of yet
-    dbIsOpen = FALSE;
-    dbIsCached = FALSE;
+    dbIsOpen = false;
+    dbIsCached = false;
+    dbOpenedWithConnectionString = false;
 }  // wxDb::initialize()
 
 
@@ -562,82 +568,88 @@ const wxChar *wxDb::convertUserID(const wxChar *userID, wxString &UserID)
         UserID.Empty();
 
     // dBase does not use user names, and some drivers fail if you try to pass one
-    if (Dbms() == dbmsDBASE)
+    if ( Dbms() == dbmsDBASE
+         || Dbms() == dbmsXBASE_SEQUITER )
         UserID.Empty();
 
-    // Oracle user names may only be in uppercase, so force
-    // the name to uppercase
-    if (Dbms() == dbmsORACLE)
+    // Some databases require user names to be specified in uppercase,
+    // so force the name to uppercase
+    if ((Dbms() == dbmsORACLE) ||
+        (Dbms() == dbmsMAXDB))
         UserID = UserID.Upper();
 
     return UserID.c_str();
 }  // wxDb::convertUserID()
 
 
-/********** wxDb::Open() **********/
-bool wxDb::Open(const wxString &Dsn, const wxString &Uid, const wxString &AuthStr)
+bool wxDb::determineDataTypes(bool failOnDataTypeUnsupported)
 {
-    wxASSERT(Dsn.Length());
-    dsn        = Dsn;
-    uid        = Uid;
-    authStr    = AuthStr;
-
-    RETCODE retcode;
+    size_t iIndex;
 
-    if (!FwdOnlyCursors())
-    {
-        // Specify that the ODBC cursor library be used, if needed.  This must be
-        // specified before the connection is made.
-        retcode = SQLSetConnectOption(hdbc, SQL_ODBC_CURSORS, SQL_CUR_USE_IF_NEEDED);
-
-#ifdef DBDEBUG_CONSOLE
-        if (retcode == SQL_SUCCESS)
-            cout << wxT("SQLSetConnectOption(CURSOR_LIB) successful") << endl;
-        else
-            cout << wxT("SQLSetConnectOption(CURSOR_LIB) failed") << endl;
+    // These are the possible SQL types we check for use against the datasource we are connected
+    // to for the purpose of determining which data type to use for the basic character strings
+    // column types
+    //
+    // NOTE: The first type in this enumeration that is determined to be supported by the
+    //       datasource/driver is the one that will be used.
+    SWORD PossibleSqlCharTypes[] = {
+#if wxUSE_UNICODE && defined(SQL_WVARCHAR)
+        SQL_WVARCHAR,
 #endif
-    }
-
-    // Connect to the data source
-    retcode = SQLConnect(hdbc, (UCHAR FAR *) dsn.c_str(), SQL_NTS,
-                         (UCHAR FAR *) uid.c_str(), SQL_NTS,
-                         (UCHAR FAR *) authStr.c_str(), SQL_NTS);
-
-/*
-    if (retcode == SQL_SUCCESS_WITH_INFO)
-        DispAllErrors(henv, hdbc);
-    else if (retcode != SQL_SUCCESS)
-        return(DispAllErrors(henv, hdbc));
-
-    if (retcode == SQL_ERROR)
-        return(DispAllErrors(henv, hdbc));
-*/
-    if ((retcode != SQL_SUCCESS) &&
-        (retcode != SQL_SUCCESS_WITH_INFO))
-        return(DispAllErrors(henv, hdbc));
-
-/*
-    If using Intersolv branded ODBC drivers, this is the place where you would substitute
-    your branded driver license information
+        SQL_VARCHAR,
+#if wxUSE_UNICODE && defined(SQL_WVARCHAR)
+        SQL_WCHAR,
+#endif
+        SQL_CHAR
+    };
 
-    SQLSetConnectOption(hdbc, 1041, (UDWORD) wxEmptyString);
-    SQLSetConnectOption(hdbc, 1042, (UDWORD) wxEmptyString);
-*/
+    // These are the possible SQL types we check for use against the datasource we are connected
+    // to for the purpose of determining which data type to use for the basic non-floating point
+    // column types
+    //
+    // NOTE: The first type in this enumeration that is determined to be supported by the
+    //       datasource/driver is the one that will be used.
+    SWORD PossibleSqlIntegerTypes[] = {
+        SQL_INTEGER
+    };
 
-    // Mark database as open
-    dbIsOpen = TRUE;
+    // These are the possible SQL types we check for use against the datasource we are connected
+    // to for the purpose of determining which data type to use for the basic floating point number
+    // column types
+    //
+    // NOTE: The first type in this enumeration that is determined to be supported by the
+    //       datasource/driver is the one that will be used.
+    SWORD PossibleSqlFloatTypes[] = {
+        SQL_DOUBLE,
+        SQL_REAL,
+        SQL_FLOAT,
+        SQL_DECIMAL,
+        SQL_NUMERIC
+    };
 
-    // Allocate a statement handle for the database connection
-    if (SQLAllocStmt(hdbc, &hstmt) != SQL_SUCCESS)
-        return(DispAllErrors(henv, hdbc));
+    // These are the possible SQL types we check for use agains the datasource we are connected
+    // to for the purpose of determining which data type to use for the date/time column types
+    //
+    // NOTE: The first type in this enumeration that is determined to be supported by the
+    //       datasource/driver is the one that will be used.
+    SWORD PossibleSqlDateTypes[] = {
+        SQL_TIMESTAMP,
+        SQL_DATE,
+#ifdef SQL_DATETIME
+        SQL_DATETIME
+#endif
+    };
 
-    // Set Connection Options
-    if (!setConnectionOptions())
-        return(FALSE);
+    // These are the possible SQL types we check for use agains the datasource we are connected
+    // to for the purpose of determining which data type to use for the BLOB column types.
+    //
+    // NOTE: The first type in this enumeration that is determined to be supported by the
+    //       datasource/driver is the one that will be used.
+    SWORD PossibleSqlBlobTypes[] = {
+        SQL_LONGVARBINARY,
+        SQL_VARBINARY
+    };
 
-    // Query the data source for inf. about itself
-    if (!getDbInfo())
-        return(FALSE);
 
     // Query the data source regarding data type information
 
@@ -646,7 +658,7 @@ bool wxDb::Open(const wxString &Dsn, const wxString &Uid, const wxString &AuthSt
     // for all of the possible SQL data types to see which ones were supported.  If
     // a type is not supported, the SQLFetch() that's called from getDataTypeInfo()
     // fails with SQL_NO_DATA_FOUND.  This is ugly because I'm sure the three SQL data
-    // types I've selected below will not alway's be what we want.  These are just
+    // types I've selected below will not always be what we want.  These are just
     // what happened to work against an Oracle 7/Intersolv combination.  The following is
     // a complete list of the results I got back against the Oracle 7 database:
     //
@@ -680,73 +692,97 @@ bool wxDb::Open(const wxString &Dsn, const wxString &Uid, const wxString &AuthSt
     // SQL_DOUBLE             type name = 'DOUBLE', Precision = 15
     // SQL_INTEGER            type name = 'LONG', Precision = 10
 
-    // VARCHAR = Variable length character string
-    if (!getDataTypeInfo(SQL_VARCHAR, typeInfVarchar))
-        if (!getDataTypeInfo(SQL_CHAR, typeInfVarchar))
-            return(FALSE);
-        else
-            typeInfVarchar.FsqlType = SQL_CHAR;
-    else
-        typeInfVarchar.FsqlType = SQL_VARCHAR;
-
-    // Float
-    if (!getDataTypeInfo(SQL_DOUBLE,typeInfFloat))
-        if (!getDataTypeInfo(SQL_REAL,typeInfFloat))
-            if (!getDataTypeInfo(SQL_FLOAT,typeInfFloat))
-                if (!getDataTypeInfo(SQL_DECIMAL,typeInfFloat))
-                    if (!getDataTypeInfo(SQL_NUMERIC,typeInfFloat))
-                        return(FALSE);
-                    else
-                        typeInfFloat.FsqlType = SQL_NUMERIC;
-                else
-                    typeInfFloat.FsqlType = SQL_DECIMAL;
-            else
-                typeInfFloat.FsqlType = SQL_FLOAT;
-        else
-            typeInfFloat.FsqlType = SQL_REAL;
-    else
-        typeInfFloat.FsqlType = SQL_DOUBLE;
-
-    // Integer
-    if (!getDataTypeInfo(SQL_INTEGER, typeInfInteger))
+    // Query the data source for info about itself
+    if (!getDbInfo(failOnDataTypeUnsupported))
+        return false;
+
+    // --------------- Varchar - (Variable length character string) ---------------
+    for (iIndex = 0; iIndex < WXSIZEOF(PossibleSqlCharTypes) &&
+                     !getDataTypeInfo(PossibleSqlCharTypes[iIndex], typeInfVarchar); ++iIndex)
+    {}
+
+    if (iIndex < WXSIZEOF(PossibleSqlCharTypes))
+        typeInfVarchar.FsqlType = PossibleSqlCharTypes[iIndex];
+    else if (failOnDataTypeUnsupported)
+        return false;
+
+    // --------------- Float ---------------
+    for (iIndex = 0; iIndex < WXSIZEOF(PossibleSqlFloatTypes) &&
+                     !getDataTypeInfo(PossibleSqlFloatTypes[iIndex], typeInfFloat); ++iIndex)
+    {}
+
+    if (iIndex < WXSIZEOF(PossibleSqlFloatTypes))
+        typeInfFloat.FsqlType = PossibleSqlFloatTypes[iIndex];
+    else if (failOnDataTypeUnsupported)
+        return false;
+
+    // --------------- Integer -------------
+    for (iIndex = 0; iIndex < WXSIZEOF(PossibleSqlIntegerTypes) &&
+                     !getDataTypeInfo(PossibleSqlIntegerTypes[iIndex], typeInfInteger); ++iIndex)
+    {}
+
+    if (iIndex < WXSIZEOF(PossibleSqlIntegerTypes))
+        typeInfInteger.FsqlType = PossibleSqlIntegerTypes[iIndex];
+    else if (failOnDataTypeUnsupported)
     {
-        // If SQL_INTEGER is not supported, use the floating point
-        // data type to store integers as well as floats
+        // If no non-floating point data types are supported, we'll
+        // use the type assigned for floats to store integers as well
         if (!getDataTypeInfo(typeInfFloat.FsqlType, typeInfInteger))
-            return(FALSE);
+        {
+            if (failOnDataTypeUnsupported)
+                return false;
+        }
         else
             typeInfInteger.FsqlType = typeInfFloat.FsqlType;
     }
-    else
-        typeInfInteger.FsqlType = SQL_INTEGER;
 
-    // Date/Time
-    if (Dbms() != dbmsDBASE)
-    {
-        if (!getDataTypeInfo(SQL_TIMESTAMP,typeInfDate))
-            return(FALSE);
-        else
-            typeInfDate.FsqlType = SQL_TIMESTAMP;
-    }
-    else
-    {
-        if (!getDataTypeInfo(SQL_DATE,typeInfDate))
-            return(FALSE);
-        else
-            typeInfDate.FsqlType = SQL_DATE;
-    }
+    // --------------- Date/Time ---------------
+    for (iIndex = 0; iIndex < WXSIZEOF(PossibleSqlDateTypes) &&
+                     !getDataTypeInfo(PossibleSqlDateTypes[iIndex], typeInfDate); ++iIndex)
+    {}
 
-    if (!getDataTypeInfo(SQL_LONGVARBINARY, typeInfBlob))
-    {
-        if (!getDataTypeInfo(SQL_VARBINARY,typeInfBlob))
-            return(FALSE);
-        else
-            typeInfBlob.FsqlType = SQL_VARBINARY;
-    }
-    else
-        typeInfBlob.FsqlType = SQL_LONGVARBINARY;
+    if (iIndex < WXSIZEOF(PossibleSqlDateTypes))
+        typeInfDate.FsqlType = PossibleSqlDateTypes[iIndex];
+    else if (failOnDataTypeUnsupported)
+        return false;
+
+    // --------------- BLOB ---------------
+    for (iIndex = 0; iIndex < WXSIZEOF(PossibleSqlBlobTypes) &&
+                     !getDataTypeInfo(PossibleSqlBlobTypes[iIndex], typeInfBlob); ++iIndex)
+    {}
+
+    if (iIndex < WXSIZEOF(PossibleSqlBlobTypes))
+        typeInfBlob.FsqlType = PossibleSqlBlobTypes[iIndex];
+    else if (failOnDataTypeUnsupported)
+        return false;
+
+    return true;
+}  // wxDb::determineDataTypes
+
+
+bool wxDb::open(bool failOnDataTypeUnsupported)
+{
+/*
+    If using Intersolv branded ODBC drivers, this is the place where you would substitute
+    your branded driver license information
+
+    SQLSetConnectOption(hdbc, 1041, (UDWORD) wxEmptyString);
+    SQLSetConnectOption(hdbc, 1042, (UDWORD) wxEmptyString);
+*/
+
+    // Mark database as open
+    dbIsOpen = true;
+
+    // Allocate a statement handle for the database connection
+    if (SQLAllocStmt(hdbc, &hstmt) != SQL_SUCCESS)
+        return(DispAllErrors(henv, hdbc));
+
+    // Set Connection Options
+    if (!setConnectionOptions())
+        return false;
 
-//typeInfBlob.TypeName = "BLOB";
+    if (!determineDataTypes(failOnDataTypeUnsupported))
+        return false;
 
 #ifdef DBDEBUG_CONSOLE
     cout << wxT("VARCHAR DATA TYPE: ") << typeInfVarchar.TypeName << endl;
@@ -758,23 +794,123 @@ bool wxDb::Open(const wxString &Dsn, const wxString &Uid, const wxString &AuthSt
 #endif
 
     // Completed Successfully
-    return(TRUE);
+    return true;
+}
+
+bool wxDb::Open(const wxString& inConnectStr, bool failOnDataTypeUnsupported)
+{
+    wxASSERT(inConnectStr.Length());
+    return Open(inConnectStr, NULL, failOnDataTypeUnsupported);
+}
+
+bool wxDb::Open(const wxString& inConnectStr, SQLHWND parentWnd, bool failOnDataTypeUnsupported)
+{
+    dsn        = wxT("");
+    uid        = wxT("");
+    authStr    = wxT("");
+
+    RETCODE retcode;
+
+    if (!FwdOnlyCursors())
+    {
+        // Specify that the ODBC cursor library be used, if needed.  This must be
+        // specified before the connection is made.
+        retcode = SQLSetConnectOption(hdbc, SQL_ODBC_CURSORS, SQL_CUR_USE_IF_NEEDED);
+
+#ifdef DBDEBUG_CONSOLE
+        if (retcode == SQL_SUCCESS)
+            cout << wxT("SQLSetConnectOption(CURSOR_LIB) successful") << endl;
+        else
+            cout << wxT("SQLSetConnectOption(CURSOR_LIB) failed") << endl;
+#else
+        wxUnusedVar(retcode);
+#endif
+    }
+
+    // Connect to the data source
+    SQLTCHAR outConnectBuffer[SQL_MAX_CONNECTSTR_LEN+1];  // MS recommends at least 1k buffer
+    short outConnectBufferLen;
+
+    inConnectionStr = inConnectStr;
+
+    retcode = SQLDriverConnect(hdbc, parentWnd, (SQLTCHAR FAR *)inConnectionStr.c_str(),
+                        (SWORD)inConnectionStr.Length(), (SQLTCHAR FAR *)outConnectBuffer,
+                        sizeof(outConnectBuffer), &outConnectBufferLen, SQL_DRIVER_COMPLETE );
+
+    if ((retcode != SQL_SUCCESS) &&
+        (retcode != SQL_SUCCESS_WITH_INFO))
+        return(DispAllErrors(henv, hdbc));
+
+    outConnectBuffer[outConnectBufferLen] = 0;
+    outConnectionStr = outConnectBuffer;
+    dbOpenedWithConnectionString = true;
+
+    return open(failOnDataTypeUnsupported);
+}
+
+/********** wxDb::Open() **********/
+bool wxDb::Open(const wxString &Dsn, const wxString &Uid, const wxString &AuthStr, bool failOnDataTypeUnsupported)
+{
+    wxASSERT(Dsn.Length());
+    dsn        = Dsn;
+    uid        = Uid;
+    authStr    = AuthStr;
+
+    inConnectionStr = wxT("");
+    outConnectionStr = wxT("");
+
+    RETCODE retcode;
+
+    if (!FwdOnlyCursors())
+    {
+        // Specify that the ODBC cursor library be used, if needed.  This must be
+        // specified before the connection is made.
+        retcode = SQLSetConnectOption(hdbc, SQL_ODBC_CURSORS, SQL_CUR_USE_IF_NEEDED);
+
+#ifdef DBDEBUG_CONSOLE
+        if (retcode == SQL_SUCCESS)
+            cout << wxT("SQLSetConnectOption(CURSOR_LIB) successful") << endl;
+        else
+            cout << wxT("SQLSetConnectOption(CURSOR_LIB) failed") << endl;
+#else
+        wxUnusedVar( retcode );
+#endif
+    }
+
+    // Connect to the data source
+    retcode = SQLConnect(hdbc, (SQLTCHAR FAR *) dsn.c_str(), SQL_NTS,
+                         (SQLTCHAR FAR *) uid.c_str(), SQL_NTS,
+                         (SQLTCHAR FAR *) authStr.c_str(), SQL_NTS);
+
+    if ((retcode != SQL_SUCCESS) &&
+        (retcode != SQL_SUCCESS_WITH_INFO))
+        return(DispAllErrors(henv, hdbc));
+
+    return open(failOnDataTypeUnsupported);
 
 } // wxDb::Open()
 
 
-bool wxDb::Open(wxDbConnectInf *dbConnectInf)
+bool wxDb::Open(wxDbConnectInf *dbConnectInf, bool failOnDataTypeUnsupported)
 {
-    return Open(dbConnectInf->GetDsn(), dbConnectInf->GetUserID(),
-                dbConnectInf->GetPassword());
+    wxASSERT(dbConnectInf);
+
+    // Use the connection string if one is present
+    if (dbConnectInf->UseConnectionStr())
+        return Open(GetConnectionInStr(), failOnDataTypeUnsupported);
+    else
+        return Open(dbConnectInf->GetDsn(), dbConnectInf->GetUserID(),
+                    dbConnectInf->GetPassword(), failOnDataTypeUnsupported);
 }  // wxDb::Open()
 
 
 bool wxDb::Open(wxDb *copyDb)
 {
-    dsn        = copyDb->GetDatasourceName();
-    uid        = copyDb->GetUsername();
-    authStr    = copyDb->GetPassword();
+    dsn              = copyDb->GetDatasourceName();
+    uid              = copyDb->GetUsername();
+    authStr          = copyDb->GetPassword();
+    inConnectionStr  = copyDb->GetConnectionInStr();
+    outConnectionStr = copyDb->GetConnectionOutStr();
 
     RETCODE retcode;
 
@@ -789,15 +925,41 @@ bool wxDb::Open(wxDb *copyDb)
             cout << wxT("SQLSetConnectOption(CURSOR_LIB) successful") << endl;
         else
             cout << wxT("SQLSetConnectOption(CURSOR_LIB) failed") << endl;
+#else
+        wxUnusedVar( retcode );
 #endif
     }
 
-    // Connect to the data source
-    retcode = SQLConnect(hdbc, (UCHAR FAR *) dsn.c_str(), SQL_NTS,
-                         (UCHAR FAR *) uid.c_str(), SQL_NTS,
-                         (UCHAR FAR *) authStr.c_str(), SQL_NTS);
+    if (copyDb->OpenedWithConnectionString())
+    {
+        // Connect to the data source
+        SQLTCHAR outConnectBuffer[SQL_MAX_CONNECTSTR_LEN+1];
+        short outConnectBufferLen;
+
+        inConnectionStr = copyDb->GetConnectionInStr();
+
+        retcode = SQLDriverConnect(hdbc, NULL, (SQLTCHAR FAR *)inConnectionStr.c_str(),
+                            (SWORD)inConnectionStr.Length(), (SQLTCHAR FAR *)outConnectBuffer,
+                            sizeof(outConnectBuffer), &outConnectBufferLen, SQL_DRIVER_COMPLETE);
+
+        if ((retcode != SQL_SUCCESS) &&
+            (retcode != SQL_SUCCESS_WITH_INFO))
+            return(DispAllErrors(henv, hdbc));
 
-    if (retcode == SQL_ERROR)
+        outConnectBuffer[outConnectBufferLen] = 0;
+        outConnectionStr = outConnectBuffer;
+        dbOpenedWithConnectionString = true;
+    }
+    else
+    {
+        // Connect to the data source
+        retcode = SQLConnect(hdbc, (SQLTCHAR FAR *) dsn.c_str(), SQL_NTS,
+                             (SQLTCHAR FAR *) uid.c_str(), SQL_NTS,
+                             (SQLTCHAR FAR *) authStr.c_str(), SQL_NTS);
+    }
+
+    if ((retcode != SQL_SUCCESS) &&
+        (retcode != SQL_SUCCESS_WITH_INFO))
         return(DispAllErrors(henv, hdbc));
 
 /*
@@ -809,7 +971,7 @@ bool wxDb::Open(wxDb *copyDb)
 */
 
     // Mark database as open
-    dbIsOpen = TRUE;
+    dbIsOpen = true;
 
     // Allocate a statement handle for the database connection
     if (SQLAllocStmt(hdbc, &hstmt) != SQL_SUCCESS)
@@ -817,7 +979,7 @@ bool wxDb::Open(wxDb *copyDb)
 
     // Set Connection Options
     if (!setConnectionOptions())
-        return(FALSE);
+        return false;
 
     // Instead of Querying the data source for info about itself, it can just be copied
     // from the wxDb instance that was passed in (copyDb).
@@ -898,7 +1060,7 @@ bool wxDb::Open(wxDb *copyDb)
 #endif
 
     // Completed Successfully
-    return(TRUE);
+    return true;
 } // wxDb::Open() 2
 
 
@@ -912,11 +1074,14 @@ bool wxDb::setConnectionOptions(void)
 
     // I need to get the DBMS name here, because some of the connection options
     // are database specific and need to call the Dbms() function.
-    if (SQLGetInfo(hdbc, SQL_DBMS_NAME, (UCHAR*) dbInf.dbmsName, 40, &cb) != SQL_SUCCESS)
+    RETCODE retcode;
+
+    retcode = SQLGetInfo(hdbc, SQL_DBMS_NAME, (UCHAR *) dbInf.dbmsName, sizeof(dbInf.dbmsName), &cb);
+    if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO)
         return(DispAllErrors(henv, hdbc));
 
-    SQLSetConnectOption(hdbc, SQL_AUTOCOMMIT, SQL_AUTOCOMMIT_OFF);
-    SQLSetConnectOption(hdbc, SQL_OPT_TRACE, SQL_OPT_TRACE_OFF);
+    /* retcode = */ SQLSetConnectOption(hdbc, SQL_AUTOCOMMIT, SQL_AUTOCOMMIT_OFF);
+    /* retcode = */ SQLSetConnectOption(hdbc, SQL_OPT_TRACE, SQL_OPT_TRACE_OFF);
 //  SQLSetConnectOption(hdbc, SQL_TXN_ISOLATION, SQL_TXN_READ_COMMITTED);  // No dirty reads
 
     // By default, MS Sql Server closes cursors on commit and rollback.  The following
@@ -928,7 +1093,7 @@ bool wxDb::setConnectionOptions(void)
     {
         const long SQL_PRESERVE_CURSORS = 1204L;
         const long SQL_PC_ON = 1L;
-        SQLSetConnectOption(hdbc, SQL_PRESERVE_CURSORS, SQL_PC_ON);
+        /* retcode = */ SQLSetConnectOption(hdbc, SQL_PRESERVE_CURSORS, SQL_PC_ON);
     }
 
     // Display the connection options to verify them
@@ -936,15 +1101,17 @@ bool wxDb::setConnectionOptions(void)
     long l;
     cout << wxT("****** CONNECTION OPTIONS ******") << endl;
 
-    if (SQLGetConnectOption(hdbc, SQL_AUTOCOMMIT, &l) != SQL_SUCCESS)
+    retcode = SQLGetConnectOption(hdbc, SQL_AUTOCOMMIT, &l);
+    if (retcode != SQL_SUCCESS)
         return(DispAllErrors(henv, hdbc));
     cout << wxT("AUTOCOMMIT: ") << (l == SQL_AUTOCOMMIT_OFF ? "OFF" : "ON") << endl;
 
-    if (SQLGetConnectOption(hdbc, SQL_ODBC_CURSORS, &l) != SQL_SUCCESS)
+    retcode = SQLGetConnectOption(hdbc, SQL_ODBC_CURSORS, &l);
+    if (retcode != SQL_SUCCESS)
         return(DispAllErrors(henv, hdbc));
     cout << wxT("ODBC CURSORS: ");
     switch(l)
-        {
+    {
         case(SQL_CUR_USE_IF_NEEDED):
             cout << wxT("SQL_CUR_USE_IF_NEEDED");
             break;
@@ -954,10 +1121,11 @@ bool wxDb::setConnectionOptions(void)
         case(SQL_CUR_USE_DRIVER):
             cout << wxT("SQL_CUR_USE_DRIVER");
             break;
-        }
-        cout << endl;
+    }
+    cout << endl;
 
-    if (SQLGetConnectOption(hdbc, SQL_OPT_TRACE, &l) != SQL_SUCCESS)
+    retcode = SQLGetConnectOption(hdbc, SQL_OPT_TRACE, &l)
+    if (retcode != SQL_SUCCESS)
         return(DispAllErrors(henv, hdbc));
     cout << wxT("TRACING: ") << (l == SQL_OPT_TRACE_OFF ? wxT("OFF") : wxT("ON")) << endl;
 
@@ -965,119 +1133,269 @@ bool wxDb::setConnectionOptions(void)
 #endif
 
     // Completed Successfully
-    return(TRUE);
+    return true;
 
 } // wxDb::setConnectionOptions()
 
 
 /********** wxDb::getDbInfo() **********/
-bool wxDb::getDbInfo(void)
+bool wxDb::getDbInfo(bool failOnDataTypeUnsupported)
 {
     SWORD cb;
     RETCODE retcode;
 
-    if (SQLGetInfo(hdbc, SQL_SERVER_NAME, (UCHAR*) dbInf.serverName, 80, &cb) != SQL_SUCCESS)
-        return(DispAllErrors(henv, hdbc));
+    retcode = SQLGetInfo(hdbc, SQL_SERVER_NAME, (UCHAR*) dbInf.serverName, sizeof(dbInf.serverName), &cb);
+    if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO )
+    {
+        DispAllErrors(henv, hdbc);
+        if (failOnDataTypeUnsupported)
+            return false;
+    }
 
-    if (SQLGetInfo(hdbc, SQL_DATABASE_NAME, (UCHAR*) dbInf.databaseName, 128, &cb) != SQL_SUCCESS)
-        return(DispAllErrors(henv, hdbc));
+    retcode = SQLGetInfo(hdbc, SQL_DATABASE_NAME, (UCHAR*) dbInf.databaseName, sizeof(dbInf.databaseName), &cb);
+    if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO )
+    {
+        DispAllErrors(henv, hdbc);
+        if (failOnDataTypeUnsupported)
+            return false;
+    }
 
-    if (SQLGetInfo(hdbc, SQL_DBMS_NAME, (UCHAR*) dbInf.dbmsName, 40, &cb) != SQL_SUCCESS)
-        return(DispAllErrors(henv, hdbc));
+    retcode = SQLGetInfo(hdbc, SQL_DBMS_NAME, (UCHAR*) dbInf.dbmsName, sizeof(dbInf.dbmsName), &cb);
+    if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO )
+    {
+        DispAllErrors(henv, hdbc);
+        if (failOnDataTypeUnsupported)
+            return false;
+    }
 
     // 16-Mar-1999
     // After upgrading to MSVC6, the original 20 char buffer below was insufficient,
     // causing database connectivity to fail in some cases.
-    retcode = SQLGetInfo(hdbc, SQL_DBMS_VER, (UCHAR*) dbInf.dbmsVer, 64, &cb);
-
+    retcode = SQLGetInfo(hdbc, SQL_DBMS_VER, (UCHAR*) dbInf.dbmsVer, sizeof(dbInf.dbmsVer), &cb);
     if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO )
-        return(DispAllErrors(henv, hdbc));
+    {
+        DispAllErrors(henv, hdbc);
+        if (failOnDataTypeUnsupported)
+            return false;
+    }
 
-    if (SQLGetInfo(hdbc, SQL_ACTIVE_CONNECTIONS, (UCHAR*) &dbInf.maxConnections, sizeof(dbInf.maxConnections), &cb) != SQL_SUCCESS)
-        return(DispAllErrors(henv, hdbc));
+    retcode = SQLGetInfo(hdbc, SQL_ACTIVE_CONNECTIONS, (UCHAR*) &dbInf.maxConnections, sizeof(dbInf.maxConnections), &cb);
+    if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO )
+    {
+        DispAllErrors(henv, hdbc);
+        if (failOnDataTypeUnsupported)
+            return false;
+    }
 
-    if (SQLGetInfo(hdbc, SQL_ACTIVE_STATEMENTS, (UCHAR*) &dbInf.maxStmts, sizeof(dbInf.maxStmts), &cb) != SQL_SUCCESS)
-        return(DispAllErrors(henv, hdbc));
+    retcode = SQLGetInfo(hdbc, SQL_ACTIVE_STATEMENTS, (UCHAR*) &dbInf.maxStmts, sizeof(dbInf.maxStmts), &cb);
+    if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO )
+    {
+        DispAllErrors(henv, hdbc);
+        if (failOnDataTypeUnsupported)
+            return false;
+    }
 
-    if (SQLGetInfo(hdbc, SQL_DRIVER_NAME, (UCHAR*) dbInf.driverName, 40, &cb) != SQL_SUCCESS)
-        return(DispAllErrors(henv, hdbc));
+    retcode = SQLGetInfo(hdbc, SQL_DRIVER_NAME, (UCHAR*) dbInf.driverName, sizeof(dbInf.driverName), &cb);
+    if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO )
+    {
+        DispAllErrors(henv, hdbc);
+        if (failOnDataTypeUnsupported)
+            return false;
+    }
 
-    if (SQLGetInfo(hdbc, SQL_DRIVER_ODBC_VER, (UCHAR*) dbInf.odbcVer, 60, &cb) == SQL_ERROR)
-        return(DispAllErrors(henv, hdbc));
+    retcode = SQLGetInfo(hdbc, SQL_DRIVER_ODBC_VER, (UCHAR*) dbInf.odbcVer, sizeof(dbInf.odbcVer), &cb);
+    if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO )
+    {
+        DispAllErrors(henv, hdbc);
+        if (failOnDataTypeUnsupported)
+            return false;
+    }
 
-    retcode = SQLGetInfo(hdbc, SQL_ODBC_VER, (UCHAR*) dbInf.drvMgrOdbcVer, 60, &cb);
+    retcode = SQLGetInfo(hdbc, SQL_ODBC_VER, (UCHAR*) dbInf.drvMgrOdbcVer, sizeof(dbInf.drvMgrOdbcVer), &cb);
     if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO)
-        return(DispAllErrors(henv, hdbc));
+    {
+        DispAllErrors(henv, hdbc);
+        if (failOnDataTypeUnsupported)
+            return false;
+    }
 
-    if (SQLGetInfo(hdbc, SQL_DRIVER_VER, (UCHAR*) dbInf.driverVer, 60, &cb) == SQL_ERROR)
-        return(DispAllErrors(henv, hdbc));
+    retcode = SQLGetInfo(hdbc, SQL_DRIVER_VER, (UCHAR*) dbInf.driverVer, sizeof(dbInf.driverVer), &cb);
+    if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO )
+    {
+        DispAllErrors(henv, hdbc);
+        if (failOnDataTypeUnsupported)
+            return false;
+    }
 
-    if (SQLGetInfo(hdbc, SQL_ODBC_API_CONFORMANCE, (UCHAR*) &dbInf.apiConfLvl, sizeof(dbInf.apiConfLvl), &cb) != SQL_SUCCESS)
-        return(DispAllErrors(henv, hdbc));
+    retcode = SQLGetInfo(hdbc, SQL_ODBC_API_CONFORMANCE, (UCHAR*) &dbInf.apiConfLvl, sizeof(dbInf.apiConfLvl), &cb);
+    if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO )
+    {
+        DispAllErrors(henv, hdbc);
+        if (failOnDataTypeUnsupported)
+            return false;
+    }
 
-    if (SQLGetInfo(hdbc, SQL_ODBC_SAG_CLI_CONFORMANCE, (UCHAR*) &dbInf.cliConfLvl, sizeof(dbInf.cliConfLvl), &cb) != SQL_SUCCESS)
-//        return(DispAllErrors(henv, hdbc));
+    retcode = SQLGetInfo(hdbc, SQL_ODBC_SAG_CLI_CONFORMANCE, (UCHAR*) &dbInf.cliConfLvl, sizeof(dbInf.cliConfLvl), &cb);
+    if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO )
     {
         // Not all drivers support this call - Nick Gorham(unixODBC)
         dbInf.cliConfLvl = 0;
+        DispAllErrors(henv, hdbc);
+        if (failOnDataTypeUnsupported)
+            return false;
     }
 
-    if (SQLGetInfo(hdbc, SQL_ODBC_SQL_CONFORMANCE, (UCHAR*) &dbInf.sqlConfLvl, sizeof(dbInf.sqlConfLvl), &cb) != SQL_SUCCESS)
-        return(DispAllErrors(henv, hdbc));
+    retcode = SQLGetInfo(hdbc, SQL_ODBC_SQL_CONFORMANCE, (UCHAR*) &dbInf.sqlConfLvl, sizeof(dbInf.sqlConfLvl), &cb);
+    if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO )
+    {
+        DispAllErrors(henv, hdbc);
+        if (failOnDataTypeUnsupported)
+            return false;
+    }
 
-    if (SQLGetInfo(hdbc, SQL_OUTER_JOINS, (UCHAR*) dbInf.outerJoins, 2, &cb) != SQL_SUCCESS)
-        return(DispAllErrors(henv, hdbc));
+    retcode = SQLGetInfo(hdbc, SQL_OUTER_JOINS, (UCHAR*) dbInf.outerJoins, sizeof(dbInf.outerJoins), &cb);
+    if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO )
+    {
+        DispAllErrors(henv, hdbc);
+        if (failOnDataTypeUnsupported)
+            return false;
+    }
 
-    if (SQLGetInfo(hdbc, SQL_PROCEDURES, (UCHAR*) dbInf.procedureSupport, 2, &cb) != SQL_SUCCESS)
-        return(DispAllErrors(henv, hdbc));
+    retcode = SQLGetInfo(hdbc, SQL_PROCEDURES, (UCHAR*) dbInf.procedureSupport, sizeof(dbInf.procedureSupport), &cb);
+    if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO )
+    {
+        DispAllErrors(henv, hdbc);
+        if (failOnDataTypeUnsupported)
+            return false;
+    }
 
-    if (SQLGetInfo(hdbc, SQL_ACCESSIBLE_TABLES, (UCHAR*) dbInf.accessibleTables, 2, &cb) != SQL_SUCCESS)
-        return(DispAllErrors(henv, hdbc));
+    retcode = SQLGetInfo(hdbc, SQL_ACCESSIBLE_TABLES, (UCHAR*) dbInf.accessibleTables, sizeof(dbInf.accessibleTables), &cb);
+    if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO )
+    {
+        DispAllErrors(henv, hdbc);
+        if (failOnDataTypeUnsupported)
+            return false;
+    }
 
-    if (SQLGetInfo(hdbc, SQL_CURSOR_COMMIT_BEHAVIOR, (UCHAR*) &dbInf.cursorCommitBehavior, sizeof(dbInf.cursorCommitBehavior), &cb) != SQL_SUCCESS)
-        return(DispAllErrors(henv, hdbc));
+    retcode = SQLGetInfo(hdbc, SQL_CURSOR_COMMIT_BEHAVIOR, (UCHAR*) &dbInf.cursorCommitBehavior, sizeof(dbInf.cursorCommitBehavior), &cb);
+    if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO )
+    {
+        DispAllErrors(henv, hdbc);
+        if (failOnDataTypeUnsupported)
+            return false;
+    }
 
-    if (SQLGetInfo(hdbc, SQL_CURSOR_ROLLBACK_BEHAVIOR, (UCHAR*) &dbInf.cursorRollbackBehavior, sizeof(dbInf.cursorRollbackBehavior), &cb) != SQL_SUCCESS)
-        return(DispAllErrors(henv, hdbc));
+    retcode = SQLGetInfo(hdbc, SQL_CURSOR_ROLLBACK_BEHAVIOR, (UCHAR*) &dbInf.cursorRollbackBehavior, sizeof(dbInf.cursorRollbackBehavior), &cb);
+    if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO )
+    {
+        DispAllErrors(henv, hdbc);
+        if (failOnDataTypeUnsupported)
+            return false;
+    }
 
-    if (SQLGetInfo(hdbc, SQL_NON_NULLABLE_COLUMNS, (UCHAR*) &dbInf.supportNotNullClause, sizeof(dbInf.supportNotNullClause), &cb) != SQL_SUCCESS)
-        return(DispAllErrors(henv, hdbc));
+    retcode = SQLGetInfo(hdbc, SQL_NON_NULLABLE_COLUMNS, (UCHAR*) &dbInf.supportNotNullClause, sizeof(dbInf.supportNotNullClause), &cb);
+    if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO )
+    {
+        DispAllErrors(henv, hdbc);
+        if (failOnDataTypeUnsupported)
+            return false;
+    }
 
-    if (SQLGetInfo(hdbc, SQL_ODBC_SQL_OPT_IEF, (UCHAR*) dbInf.supportIEF, 2, &cb) != SQL_SUCCESS)
-        return(DispAllErrors(henv, hdbc));
+    retcode = SQLGetInfo(hdbc, SQL_ODBC_SQL_OPT_IEF, (UCHAR*) dbInf.supportIEF, sizeof(dbInf.supportIEF), &cb);
+    if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO )
+    {
+        DispAllErrors(henv, hdbc);
+        if (failOnDataTypeUnsupported)
+            return false;
+    }
 
-    if (SQLGetInfo(hdbc, SQL_DEFAULT_TXN_ISOLATION, (UCHAR*) &dbInf.txnIsolation, sizeof(dbInf.txnIsolation), &cb) != SQL_SUCCESS)
-        return(DispAllErrors(henv, hdbc));
+    retcode = SQLGetInfo(hdbc, SQL_DEFAULT_TXN_ISOLATION, (UCHAR*) &dbInf.txnIsolation, sizeof(dbInf.txnIsolation), &cb);
+    if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO )
+    {
+        DispAllErrors(henv, hdbc);
+        if (failOnDataTypeUnsupported)
+            return false;
+    }
 
-    if (SQLGetInfo(hdbc, SQL_TXN_ISOLATION_OPTION, (UCHAR*) &dbInf.txnIsolationOptions, sizeof(dbInf.txnIsolationOptions), &cb) != SQL_SUCCESS)
-        return(DispAllErrors(henv, hdbc));
+    retcode = SQLGetInfo(hdbc, SQL_TXN_ISOLATION_OPTION, (UCHAR*) &dbInf.txnIsolationOptions, sizeof(dbInf.txnIsolationOptions), &cb);
+    if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO )
+    {
+        DispAllErrors(henv, hdbc);
+        if (failOnDataTypeUnsupported)
+            return false;
+    }
 
-    if (SQLGetInfo(hdbc, SQL_FETCH_DIRECTION, (UCHAR*) &dbInf.fetchDirections, sizeof(dbInf.fetchDirections), &cb) != SQL_SUCCESS)
-        return(DispAllErrors(henv, hdbc));
+    retcode = SQLGetInfo(hdbc, SQL_FETCH_DIRECTION, (UCHAR*) &dbInf.fetchDirections, sizeof(dbInf.fetchDirections), &cb);
+    if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO )
+    {
+        DispAllErrors(henv, hdbc);
+        if (failOnDataTypeUnsupported)
+            return false;
+    }
 
-    if (SQLGetInfo(hdbc, SQL_LOCK_TYPES, (UCHAR*) &dbInf.lockTypes, sizeof(dbInf.lockTypes), &cb) != SQL_SUCCESS)
-        return(DispAllErrors(henv, hdbc));
+    retcode = SQLGetInfo(hdbc, SQL_LOCK_TYPES, (UCHAR*) &dbInf.lockTypes, sizeof(dbInf.lockTypes), &cb);
+    if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO )
+    {
+        DispAllErrors(henv, hdbc);
+        if (failOnDataTypeUnsupported)
+            return false;
+    }
 
-    if (SQLGetInfo(hdbc, SQL_POS_OPERATIONS, (UCHAR*) &dbInf.posOperations, sizeof(dbInf.posOperations), &cb) != SQL_SUCCESS)
-        return(DispAllErrors(henv, hdbc));
+    retcode = SQLGetInfo(hdbc, SQL_POS_OPERATIONS, (UCHAR*) &dbInf.posOperations, sizeof(dbInf.posOperations), &cb);
+    if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO )
+    {
+        DispAllErrors(henv, hdbc);
+        if (failOnDataTypeUnsupported)
+            return false;
+    }
 
-    if (SQLGetInfo(hdbc, SQL_POSITIONED_STATEMENTS, (UCHAR*) &dbInf.posStmts, sizeof(dbInf.posStmts), &cb) != SQL_SUCCESS)
-        return(DispAllErrors(henv, hdbc));
+    retcode = SQLGetInfo(hdbc, SQL_POSITIONED_STATEMENTS, (UCHAR*) &dbInf.posStmts, sizeof(dbInf.posStmts), &cb);
+    if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO )
+    {
+        DispAllErrors(henv, hdbc);
+        if (failOnDataTypeUnsupported)
+            return false;
+    }
 
-    if (SQLGetInfo(hdbc, SQL_SCROLL_CONCURRENCY, (UCHAR*) &dbInf.scrollConcurrency, sizeof(dbInf.scrollConcurrency), &cb) != SQL_SUCCESS)
-        return(DispAllErrors(henv, hdbc));
+    retcode = SQLGetInfo(hdbc, SQL_SCROLL_CONCURRENCY, (UCHAR*) &dbInf.scrollConcurrency, sizeof(dbInf.scrollConcurrency), &cb);
+    if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO )
+    {
+        DispAllErrors(henv, hdbc);
+        if (failOnDataTypeUnsupported)
+            return false;
+    }
 
-    if (SQLGetInfo(hdbc, SQL_SCROLL_OPTIONS, (UCHAR*) &dbInf.scrollOptions, sizeof(dbInf.scrollOptions), &cb) != SQL_SUCCESS)
-        return(DispAllErrors(henv, hdbc));
+    retcode = SQLGetInfo(hdbc, SQL_SCROLL_OPTIONS, (UCHAR*) &dbInf.scrollOptions, sizeof(dbInf.scrollOptions), &cb);
+    if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO )
+    {
+        DispAllErrors(henv, hdbc);
+        if (failOnDataTypeUnsupported)
+            return false;
+    }
 
-    if (SQLGetInfo(hdbc, SQL_STATIC_SENSITIVITY, (UCHAR*) &dbInf.staticSensitivity, sizeof(dbInf.staticSensitivity), &cb) != SQL_SUCCESS)
-        return(DispAllErrors(henv, hdbc));
+    retcode = SQLGetInfo(hdbc, SQL_STATIC_SENSITIVITY, (UCHAR*) &dbInf.staticSensitivity, sizeof(dbInf.staticSensitivity), &cb);
+    if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO )
+    {
+        DispAllErrors(henv, hdbc);
+        if (failOnDataTypeUnsupported)
+            return false;
+    }
 
-    if (SQLGetInfo(hdbc, SQL_TXN_CAPABLE, (UCHAR*) &dbInf.txnCapable, sizeof(dbInf.txnCapable), &cb) != SQL_SUCCESS)
-        return(DispAllErrors(henv, hdbc));
+    retcode = SQLGetInfo(hdbc, SQL_TXN_CAPABLE, (UCHAR*) &dbInf.txnCapable, sizeof(dbInf.txnCapable), &cb);
+    if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO )
+    {
+        DispAllErrors(henv, hdbc);
+        if (failOnDataTypeUnsupported)
+            return false;
+    }
 
-    if (SQLGetInfo(hdbc, SQL_LOGIN_TIMEOUT, (UCHAR*) &dbInf.loginTimeout, sizeof(dbInf.loginTimeout), &cb) != SQL_SUCCESS)
-        return(DispAllErrors(henv, hdbc));
+    retcode = SQLGetInfo(hdbc, SQL_LOGIN_TIMEOUT, (UCHAR*) &dbInf.loginTimeout, sizeof(dbInf.loginTimeout), &cb);
+    if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO )
+    {
+        DispAllErrors(henv, hdbc);
+        if (failOnDataTypeUnsupported)
+            return false;
+    }
 
 #ifdef DBDEBUG_CONSOLE
     cout << wxT("***** DATA SOURCE INFORMATION *****") << endl;
@@ -1275,7 +1593,7 @@ bool wxDb::getDbInfo(void)
 #endif
 
     // Completed Successfully
-    return(TRUE);
+    return true;
 
 } // wxDb::getDbInfo()
 
@@ -1290,26 +1608,29 @@ bool wxDb::getDataTypeInfo(SWORD fSqlType, wxDbSqlTypeInfo &structSQLTypeInfo)
  * wxDbSqlTypeInfo is a structure that is filled in with data type information,
  */
     RETCODE retcode;
-    SDWORD  cbRet;
+    SQLLEN  cbRet;
 
     // Get information about the data type specified
     if (SQLGetTypeInfo(hstmt, fSqlType) != SQL_SUCCESS)
         return(DispAllErrors(henv, hdbc, hstmt));
+
     // Fetch the record
-    if ((retcode = SQLFetch(hstmt)) != SQL_SUCCESS)
+    retcode = SQLFetch(hstmt);
+    if (retcode != SQL_SUCCESS)
     {
 #ifdef DBDEBUG_CONSOLE
         if (retcode == SQL_NO_DATA_FOUND)
-            cout << wxT("SQL_NO_DATA_FOUND fetching inf. about data type.") << endl;
+            cout << wxT("SQL_NO_DATA_FOUND fetching information about data type.") << endl;
 #endif
         DispAllErrors(henv, hdbc, hstmt);
         SQLFreeStmt(hstmt, SQL_CLOSE);
-        return(FALSE);
+        return false;
     }
 
     wxChar typeName[DB_TYPE_NAME_LEN+1];
+
     // Obtain columns from the record
-    if (SQLGetData(hstmt, 1, SQL_C_CHAR, (UCHAR*) typeName, DB_TYPE_NAME_LEN, &cbRet) != SQL_SUCCESS)
+    if (SQLGetData(hstmt, 1, SQL_C_WXCHAR, typeName, sizeof(typeName), &cbRet) != SQL_SUCCESS)
         return(DispAllErrors(henv, hdbc, hstmt));
 
     structSQLTypeInfo.TypeName = typeName;
@@ -1360,7 +1681,7 @@ bool wxDb::getDataTypeInfo(SWORD fSqlType, wxDbSqlTypeInfo &structSQLTypeInfo)
         return(DispAllErrors(henv, hdbc, hstmt));
 
     // Completed Successfully
-    return(TRUE);
+    return true;
 
 } // wxDb::getDataTypeInfo()
 
@@ -1395,19 +1716,19 @@ void wxDb::Close(void)
 
 #ifdef __WXDEBUG__
     wxTablesInUse *tiu;
-    wxNode *pNode;
-    pNode = TablesInUse.First();
+    wxList::compatibility_iterator pNode;
+    pNode = TablesInUse.GetFirst();
     wxString s,s2;
     while (pNode)
     {
-        tiu = (wxTablesInUse *)pNode->Data();
+        tiu = (wxTablesInUse *)pNode->GetData();
         if (tiu->pDb == this)
         {
             s.Printf(wxT("(%-20s)     tableID:[%6lu]     pDb:[%p]"), tiu->tableName,tiu->tableID,tiu->pDb);
-            s2.Printf(wxT("Orphaned found using pDb:[%p]"),this);
-            wxLogDebug (s.c_str(),s2.c_str());
+            s2.Printf(wxT("Orphaned table found using pDb:[%p]"),this);
+            wxLogDebug(s.c_str(),s2.c_str());
         }
-        pNode = pNode->Next();
+        pNode = pNode->GetNext();
     }
 #endif
 
@@ -1417,7 +1738,7 @@ void wxDb::Close(void)
         wxStrcpy(DBerrorList[i], errorList[i]);
 
     dbmsType = dbmsUNIDENTIFIED;
-    dbIsOpen = FALSE;
+    dbIsOpen = false;
 
 } // wxDb::Close()
 
@@ -1433,7 +1754,7 @@ bool wxDb::CommitTrans(void)
     }
 
     // Completed successfully
-    return(TRUE);
+    return true;
 
 } // wxDb::CommitTrans()
 
@@ -1446,7 +1767,7 @@ bool wxDb::RollbackTrans(void)
         return(DispAllErrors(henv, hdbc));
 
     // Completed successfully
-    return(TRUE);
+    return true;
 
 } // wxDb::RollbackTrans()
 
@@ -1456,22 +1777,22 @@ bool wxDb::DispAllErrors(HENV aHenv, HDBC aHdbc, HSTMT aHstmt)
 /*
  * This function is called internally whenever an error condition prevents the user's
  * request from being executed.  This function will query the datasource as to the
- * actual error(s) that just occured on the previous request of the datasource.
+ * actual error(s) that just occurred on the previous request of the datasource.
  *
  * The function will retrieve each error condition from the datasource and
  * Printf the codes/text values into a string which it then logs via logError().
  * If in DBDEBUG_CONSOLE mode, the constructed string will be displayed in the console
  * window and program execution will be paused until the user presses a key.
  *
- * This function always returns a FALSE, so that functions which call this function
+ * This function always returns false, so that functions which call this function
  * can have a line like "return (DispAllErrors(henv, hdbc));" to indicate the failure
- * of the users request, so that the calling code can then process the error msg log
+ * of the user's request, so that the calling code can then process the error message log.
  */
 {
     wxString odbcErrMsg;
 
-    while (SQLError(aHenv, aHdbc, aHstmt, (UCHAR FAR *) sqlState, &nativeError, (UCHAR FAR *) errorMsg, SQL_MAX_MESSAGE_LENGTH - 1, &cbErrorMsg) == SQL_SUCCESS)
-    {
+   while (SQLError(aHenv, aHdbc, aHstmt, (SQLTCHAR FAR *) sqlState, &nativeError, (SQLTCHAR FAR *) errorMsg, SQL_MAX_MESSAGE_LENGTH - 1, &cbErrorMsg) == SQL_SUCCESS)
+     {
         odbcErrMsg.Printf(wxT("SQL State = %s\nNative Error Code = %li\nError Message = %s\n"), sqlState, nativeError, errorMsg);
         logError(odbcErrMsg, sqlState);
         if (!silent)
@@ -1489,7 +1810,7 @@ bool wxDb::DispAllErrors(HENV aHenv, HDBC aHdbc, HSTMT aHstmt)
         }
     }
 
-    return(FALSE);  // This function always returns FALSE.
+    return false;  // This function always returns false.
 
 } // wxDb::DispAllErrors()
 
@@ -1497,10 +1818,10 @@ bool wxDb::DispAllErrors(HENV aHenv, HDBC aHdbc, HSTMT aHstmt)
 /********** wxDb::GetNextError() **********/
 bool wxDb::GetNextError(HENV aHenv, HDBC aHdbc, HSTMT aHstmt)
 {
-    if (SQLError(aHenv, aHdbc, aHstmt, (UCHAR FAR *) sqlState, &nativeError, (UCHAR FAR *) errorMsg, SQL_MAX_MESSAGE_LENGTH - 1, &cbErrorMsg) == SQL_SUCCESS)
-        return(TRUE);
+   if (SQLError(aHenv, aHdbc, aHstmt, (SQLTCHAR FAR *) sqlState, &nativeError, (SQLTCHAR FAR *) errorMsg, SQL_MAX_MESSAGE_LENGTH - 1, &cbErrorMsg) == SQL_SUCCESS)
+     return true;
     else
-        return(FALSE);
+        return false;
 
 } // wxDb::GetNextError()
 
@@ -1541,12 +1862,13 @@ void wxDb::logError(const wxString &errMsg, const wxString &SQLState)
     if (++pLast == DB_MAX_ERROR_HISTORY)
     {
         int i;
-        for (i = 0; i < DB_MAX_ERROR_HISTORY; i++)
+        for (i = 0; i < DB_MAX_ERROR_HISTORY-1; i++)
             wxStrcpy(errorList[i], errorList[i+1]);
         pLast--;
     }
 
-    wxStrcpy(errorList[pLast], errMsg);
+    wxStrncpy(errorList[pLast], errMsg, DB_MAX_ERROR_MSG_LEN);
+    errorList[pLast][DB_MAX_ERROR_MSG_LEN] = 0;
 
     if (SQLState.Length())
         if ((dbStatus = TranslateSqlState(SQLState)) != DB_ERR_FUNCTION_SEQUENCE_ERROR)
@@ -1784,7 +2106,7 @@ bool wxDb::Grant(int privileges, const wxString &tableName, const wxString &user
     }
 
     sqlStmt += wxT(" ON ");
-    sqlStmt += tableName;
+    sqlStmt += SQLTableName(tableName);
     sqlStmt += wxT(" TO ");
     sqlStmt += userList;
 
@@ -1807,7 +2129,7 @@ bool wxDb::CreateView(const wxString &viewName, const wxString &colList,
 
     // Drop the view first
     if (attemptDrop && !DropView(viewName))
-        return FALSE;
+        return false;
 
     // Build the create view statement
     sqlStmt  = wxT("CREATE VIEW ");
@@ -1838,7 +2160,7 @@ bool wxDb::CreateView(const wxString &viewName, const wxString &colList,
 bool wxDb::DropView(const wxString &viewName)
 {
 /*
- * NOTE: This function returns TRUE if the View does not exist, but
+ * NOTE: This function returns true if the View does not exist, but
  *       only for identified databases.  Code will need to be added
  *            below for any other databases when those databases are defined
  *       to handle this situation consistently
@@ -1853,7 +2175,7 @@ bool wxDb::DropView(const wxString &viewName)
     cout << endl << sqlStmt.c_str() << endl;
 #endif
 
-    if (SQLExecDirect(hstmt, (UCHAR FAR *) sqlStmt.c_str(), SQL_NTS) != SQL_SUCCESS)
+    if (SQLExecDirect(hstmt, (SQLTCHAR FAR *) sqlStmt.c_str(), SQL_NTS) != SQL_SUCCESS)
     {
         // Check for "Base table not found" error and ignore
         GetNextError(henv, hdbc, hstmt);
@@ -1865,16 +2187,16 @@ bool wxDb::DropView(const wxString &viewName)
                 DispNextError();
                 DispAllErrors(henv, hdbc, hstmt);
                 RollbackTrans();
-                return(FALSE);
+                return false;
             }
         }
     }
 
     // Commit the transaction
     if (!CommitTrans())
-        return(FALSE);
+        return false;
 
-    return TRUE;
+    return true;
 
 }  // wxDb::DropView()
 
@@ -1886,47 +2208,148 @@ bool wxDb::ExecSql(const wxString &pSqlStmt)
 
     SQLFreeStmt(hstmt, SQL_CLOSE);
 
-    retcode = SQLExecDirect(hstmt, (UCHAR FAR *) pSqlStmt.c_str(), SQL_NTS);
+    retcode = SQLExecDirect(hstmt, (SQLTCHAR FAR *) pSqlStmt.c_str(), SQL_NTS);
     if (retcode == SQL_SUCCESS ||
         (Dbms() == dbmsDB2 && (retcode == SQL_SUCCESS_WITH_INFO || retcode == SQL_NO_DATA_FOUND)))
     {
-        return(TRUE);
+        return true;
     }
     else
     {
         DispAllErrors(henv, hdbc, hstmt);
-        return(FALSE);
+        return false;
     }
 
 }  // wxDb::ExecSql()
 
 
+/********** wxDb::ExecSql() with column info **********/
+bool wxDb::ExecSql(const wxString &pSqlStmt, wxDbColInf** columns, short& numcols)
+{
+    //execute the statement first
+    if (!ExecSql(pSqlStmt))
+        return false;
+
+    SWORD noCols;
+    if (SQLNumResultCols(hstmt, &noCols) != SQL_SUCCESS)
+    {
+        DispAllErrors(henv, hdbc, hstmt);
+        return false;
+    }
+
+    if (noCols == 0)
+        return false;
+    else
+        numcols = noCols;
+
+    //  Get column information
+    short colNum;
+    wxChar name[DB_MAX_COLUMN_NAME_LEN+1];
+    SWORD Sword;
+    SQLLEN Sqllen;
+    wxDbColInf* pColInf = new wxDbColInf[noCols];
+
+    // Fill in column information (name, datatype)
+    for (colNum = 0; colNum < noCols; colNum++)
+    {
+        if (SQLColAttributes(hstmt, (UWORD)(colNum+1), SQL_COLUMN_NAME,
+            name, sizeof(name),
+            &Sword, &Sqllen) != SQL_SUCCESS)
+        {
+            DispAllErrors(henv, hdbc, hstmt);
+            delete[] pColInf;
+            return false;
+        }
+
+        wxStrncpy(pColInf[colNum].colName, name, DB_MAX_COLUMN_NAME_LEN);
+        pColInf[colNum].colName[DB_MAX_COLUMN_NAME_LEN] = 0;  // Prevent buffer overrun
+
+        if (SQLColAttributes(hstmt, (UWORD)(colNum+1), SQL_COLUMN_TYPE,
+            NULL, 0, &Sword, &Sqllen) != SQL_SUCCESS)
+        {
+            DispAllErrors(henv, hdbc, hstmt);
+            delete[] pColInf;
+            return false;
+        }
+
+        switch (Sqllen)
+        {
+#if wxUSE_UNICODE
+    #if defined(SQL_WCHAR)
+            case SQL_WCHAR:
+    #endif
+    #if defined(SQL_WVARCHAR)
+            case SQL_WVARCHAR:
+    #endif
+#endif
+            case SQL_VARCHAR:
+            case SQL_CHAR:
+                pColInf[colNum].dbDataType = DB_DATA_TYPE_VARCHAR;
+                break;
+            case SQL_TINYINT:
+            case SQL_SMALLINT:
+            case SQL_INTEGER:
+            case SQL_BIT:
+                pColInf[colNum].dbDataType = DB_DATA_TYPE_INTEGER;
+                break;
+            case SQL_DOUBLE:
+            case SQL_DECIMAL:
+            case SQL_NUMERIC:
+            case SQL_FLOAT:
+            case SQL_REAL:
+                pColInf[colNum].dbDataType = DB_DATA_TYPE_FLOAT;
+                break;
+            case SQL_DATE:
+            case SQL_TIMESTAMP:
+                pColInf[colNum].dbDataType = DB_DATA_TYPE_DATE;
+                break;
+            case SQL_BINARY:
+                pColInf[colNum].dbDataType = DB_DATA_TYPE_BLOB;
+                break;
+#ifdef __WXDEBUG__
+            default:
+                wxString errMsg;
+                errMsg.Printf(wxT("SQL Data type %ld currently not supported by wxWidgets"), (long)Sqllen);
+                wxLogDebug(errMsg,wxT("ODBC DEBUG MESSAGE"));
+#endif
+        }
+    }
+
+    *columns = pColInf;
+    return true;
+}  // wxDb::ExecSql()
+
 /********** wxDb::GetNext()  **********/
 bool wxDb::GetNext(void)
 {
     if (SQLFetch(hstmt) == SQL_SUCCESS)
-        return(TRUE);
+        return true;
     else
     {
         DispAllErrors(henv, hdbc, hstmt);
-        return(FALSE);
+        return false;
     }
 
 }  // wxDb::GetNext()
 
 
 /********** wxDb::GetData()  **********/
-bool wxDb::GetData(UWORD colNo, SWORD cType, PTR pData, SDWORD maxLen, SDWORD FAR *cbReturned)
+bool wxDb::GetData(UWORD colNo, SWORD cType, PTR pData, SDWORD maxLen, SQLLEN FAR *cbReturned)
 {
     wxASSERT(pData);
     wxASSERT(cbReturned);
 
-    if (SQLGetData(hstmt, colNo, cType, pData, maxLen, cbReturned) == SQL_SUCCESS)
-        return(TRUE);
+    long bufferSize = maxLen;
+
+    if (cType == SQL_C_WXCHAR)
+        bufferSize = maxLen * sizeof(wxChar);
+
+    if (SQLGetData(hstmt, colNo, cType, pData, bufferSize, cbReturned) == SQL_SUCCESS)
+        return true;
     else
     {
         DispAllErrors(henv, hdbc, hstmt);
-        return(FALSE);
+        return false;
     }
 
 }  // wxDb::GetData()
@@ -1937,12 +2360,11 @@ int wxDb::GetKeyFields(const wxString &tableName, wxDbColInf* colInf, UWORD noCo
 {
     wxChar       szPkTable[DB_MAX_TABLE_NAME_LEN+1];  /* Primary key table name */
     wxChar       szFkTable[DB_MAX_TABLE_NAME_LEN+1];  /* Foreign key table name */
-    short        iKeySeq;
-//    SQLSMALLINT  iKeySeq;
+    SWORD        iKeySeq;
     wxChar       szPkCol[DB_MAX_COLUMN_NAME_LEN+1];   /* Primary key column     */
     wxChar       szFkCol[DB_MAX_COLUMN_NAME_LEN+1];   /* Foreign key column     */
     SQLRETURN    retcode;
-    SDWORD       cb;
+    SQLLEN       cb;
     SWORD        i;
     wxString     tempStr;
     /*
@@ -1964,7 +2386,7 @@ int wxDb::GetKeyFields(const wxString &tableName, wxDbColInf* colInf, UWORD noCo
     retcode = SQLPrimaryKeys(hstmt,
                              NULL, 0,                               /* Catalog name  */
                              NULL, 0,                               /* Schema name   */
-                             (UCHAR FAR *) tableName.c_str(), SQL_NTS); /* Table name    */
+                             (SQLTCHAR FAR *) tableName.c_str(), SQL_NTS); /* Table name    */
 
     /*---------------------------------------------------------------------*/
     /* Fetch and display the result set. This will be a list of the        */
@@ -1975,7 +2397,7 @@ int wxDb::GetKeyFields(const wxString &tableName, wxDbColInf* colInf, UWORD noCo
         retcode = SQLFetch(hstmt);
         if (retcode == SQL_SUCCESS || retcode == SQL_SUCCESS_WITH_INFO)
         {
-            GetData( 4, SQL_C_CHAR,   szPkCol,     DB_MAX_COLUMN_NAME_LEN+1, &cb);
+            GetData( 4, SQL_C_WXCHAR,  szPkCol,    DB_MAX_COLUMN_NAME_LEN+1, &cb);
             GetData( 5, SQL_C_SSHORT, &iKeySeq,    0,                        &cb);
             //-------
             for (i=0;i<noCols;i++)                          // Find the Column name
@@ -1991,7 +2413,7 @@ int wxDb::GetKeyFields(const wxString &tableName, wxDbColInf* colInf, UWORD noCo
     retcode = SQLForeignKeys(hstmt,
                              NULL, 0,                            /* Primary catalog */
                              NULL, 0,                            /* Primary schema  */
-                             (UCHAR FAR *)tableName.c_str(), SQL_NTS,/* Primary table   */
+                             (SQLTCHAR FAR *)tableName.c_str(), SQL_NTS,/* Primary table   */
                              NULL, 0,                            /* Foreign catalog */
                              NULL, 0,                            /* Foreign schema  */
                              NULL, 0);                           /* Foreign table   */
@@ -2007,22 +2429,25 @@ int wxDb::GetKeyFields(const wxString &tableName, wxDbColInf* colInf, UWORD noCo
         retcode = SQLFetch(hstmt);
         if (retcode == SQL_SUCCESS || retcode == SQL_SUCCESS_WITH_INFO)
         {
-            GetData( 3, SQL_C_CHAR,   szPkTable,   DB_MAX_TABLE_NAME_LEN+1,  &cb);
-            GetData( 4, SQL_C_CHAR,   szPkCol,     DB_MAX_COLUMN_NAME_LEN+1, &cb);
-            GetData( 5, SQL_C_SSHORT, &iKeySeq,    0,                        &cb);
-            GetData( 7, SQL_C_CHAR,   szFkTable,   DB_MAX_TABLE_NAME_LEN+1,  &cb);
-            GetData( 8, SQL_C_CHAR,   szFkCol,     DB_MAX_COLUMN_NAME_LEN+1, &cb);
-            tempStr.Printf(wxT("%s[%s] "),tempStr.c_str(),szFkTable);  // [ ] in case there is a blank in the Table name
+            GetData( 3, SQL_C_WXCHAR,  szPkTable,   DB_MAX_TABLE_NAME_LEN+1,   &cb);
+            GetData( 4, SQL_C_WXCHAR,  szPkCol,     DB_MAX_COLUMN_NAME_LEN+1,  &cb);
+            GetData( 5, SQL_C_SSHORT, &iKeySeq,     0,                         &cb);
+            GetData( 7, SQL_C_WXCHAR,  szFkTable,   DB_MAX_TABLE_NAME_LEN+1,   &cb);
+            GetData( 8, SQL_C_WXCHAR,  szFkCol,     DB_MAX_COLUMN_NAME_LEN+1,  &cb);
+            tempStr << _T('[') << szFkTable << _T(']');  // [ ] in case there is a blank in the Table name
         }  // if
     }  // while
 
     tempStr.Trim();     // Get rid of any unneeded blanks
-    if (!tempStr.IsEmpty())
+    if (!tempStr.empty())
     {
         for (i=0; i<noCols; i++)
         {   // Find the Column name
             if (!wxStrcmp(colInf[i].colName, szPkCol))           // We have found the Column, store the Information
-                wxStrcpy(colInf[i].PkTableName, tempStr.c_str());  // Name of the Tables where this Primary Key is used as a Foreign Key
+            {
+                wxStrncpy(colInf[i].PkTableName, tempStr.c_str(), DB_MAX_TABLE_NAME_LEN);  // Name of the Tables where this Primary Key is used as a Foreign Key
+                colInf[i].PkTableName[DB_MAX_TABLE_NAME_LEN] = 0;  // Prevent buffer overrun
+            }
         }
     }  // if
 
@@ -2037,29 +2462,29 @@ int wxDb::GetKeyFields(const wxString &tableName, wxDbColInf* colInf, UWORD noCo
                              NULL, 0,                             /* Primary table     */
                              NULL, 0,                             /* Foreign catalog   */
                              NULL, 0,                             /* Foreign schema    */
-                             (UCHAR *)tableName.c_str(), SQL_NTS);/* Foreign table     */
+                             (SQLTCHAR *)tableName.c_str(), SQL_NTS);/* Foreign table     */
 
     /*---------------------------------------------------------------------*/
     /*  Fetch and display the result set. This will be all of the          */
     /*  primary keys in other tables that are referred to by foreign       */
     /*  keys in the tableName table.                                       */
     /*---------------------------------------------------------------------*/
-    i = 0;
     while ((retcode == SQL_SUCCESS) || (retcode == SQL_SUCCESS_WITH_INFO))
     {
         retcode = SQLFetch(hstmt);
         if (retcode == SQL_SUCCESS || retcode == SQL_SUCCESS_WITH_INFO)
         {
-            GetData( 3, SQL_C_CHAR,   szPkTable,   DB_MAX_TABLE_NAME_LEN+1,  &cb);
-            GetData( 5, SQL_C_SSHORT, &iKeySeq,    0,                        &cb);
-            GetData( 8, SQL_C_CHAR,   szFkCol,     DB_MAX_COLUMN_NAME_LEN+1, &cb);
+            GetData( 3, SQL_C_WXCHAR,  szPkTable,   DB_MAX_TABLE_NAME_LEN+1,  &cb);
+            GetData( 5, SQL_C_SSHORT, &iKeySeq,     0,                        &cb);
+            GetData( 8, SQL_C_WXCHAR,  szFkCol,     DB_MAX_COLUMN_NAME_LEN+1, &cb);
             //-------
             for (i=0; i<noCols; i++)                            // Find the Column name
             {
                 if (!wxStrcmp(colInf[i].colName,szFkCol))       // We have found the (Foreign Key) Column
                 {
                     colInf[i].FkCol = iKeySeq;                  // Which Foreign Key is this (first, second usw.) ?
-                    wxStrcpy(colInf[i].FkTableName,szPkTable);  // Name of the Table where this Foriegn is the Primary Key
+                    wxStrncpy(colInf[i].FkTableName, szFkTable, DB_MAX_TABLE_NAME_LEN);  // Name of the Table where this Foriegn is the Primary Key
+                    colInf[i].FkTableName[DB_MAX_TABLE_NAME_LEN] = 0;  // Prevent buffer overrun
                 } // if
             }  // for
         }  // if
@@ -2078,7 +2503,7 @@ wxDbColInf *wxDb::GetColumns(wxChar *tableName[], const wxChar *userID)
  *        1) The last array element of the tableName[] argument must be zero (null).
  *            This is how the end of the array is detected.
  *        2) This function returns an array of wxDbColInf structures.  If no columns
- *            were found, or an error occured, this pointer will be zero (null).  THE
+ *            were found, or an error occurred, this pointer will be zero (null).  THE
  *            CALLING FUNCTION IS RESPONSIBLE FOR DELETING THE MEMORY RETURNED WHEN IT
  *            IS FINISHED WITH IT.  i.e.
  *
@@ -2106,7 +2531,7 @@ wxDbColInf *wxDb::GetColumns(wxChar *tableName[], const wxChar *userID)
     wxDbColInf *colInf = 0;
 
     RETCODE  retcode;
-    SDWORD   cb;
+    SQLLEN   cb;
 
     wxString TableName;
 
@@ -2128,8 +2553,8 @@ wxDbColInf *wxDb::GetColumns(wxChar *tableName[], const wxChar *userID)
             if (!colInf)
                 break;
             // Mark the end of the array
-            wxStrcpy(colInf[noCols].tableName,wxEmptyString);
-            wxStrcpy(colInf[noCols].colName,wxEmptyString);
+            wxStrcpy(colInf[noCols].tableName, wxEmptyString);
+            wxStrcpy(colInf[noCols].colName, wxEmptyString);
             colInf[noCols].sqlDataType = 0;
         }
         // Loop through each table name
@@ -2140,6 +2565,7 @@ wxDbColInf *wxDb::GetColumns(wxChar *tableName[], const wxChar *userID)
             // Oracle and Interbase table names are uppercase only, so force
             // the name to uppercase just in case programmer forgot to do this
             if ((Dbms() == dbmsORACLE) ||
+                (Dbms() == dbmsFIREBIRD) ||
                 (Dbms() == dbmsINTERBASE))
                 TableName = TableName.Upper();
 
@@ -2147,15 +2573,15 @@ wxDbColInf *wxDb::GetColumns(wxChar *tableName[], const wxChar *userID)
 
             // MySQL, SQLServer, and Access cannot accept a user name when looking up column names, so we
             // use the call below that leaves out the user name
-            if (!UserID.IsEmpty() &&
+            if (!UserID.empty() &&
                 Dbms() != dbmsMY_SQL &&
                 Dbms() != dbmsACCESS &&
                 Dbms() != dbmsMS_SQL_SERVER)
             {
                 retcode = SQLColumns(hstmt,
                                      NULL, 0,                                // All qualifiers
-                                     (UCHAR *) UserID.c_str(), SQL_NTS,      // Owner
-                                     (UCHAR *) TableName.c_str(), SQL_NTS,
+                                     (SQLTCHAR *) UserID.c_str(), SQL_NTS,      // Owner
+                                     (SQLTCHAR *) TableName.c_str(), SQL_NTS,
                                      NULL, 0);                               // All columns
             }
             else
@@ -2163,11 +2589,11 @@ wxDbColInf *wxDb::GetColumns(wxChar *tableName[], const wxChar *userID)
                 retcode = SQLColumns(hstmt,
                                      NULL, 0,                                // All qualifiers
                                      NULL, 0,                                // Owner
-                                     (UCHAR *) TableName.c_str(), SQL_NTS,
+                                     (SQLTCHAR *) TableName.c_str(), SQL_NTS,
                                      NULL, 0);                               // All columns
             }
             if (retcode != SQL_SUCCESS)
-            {  // Error occured, abort
+            {  // Error occurred, abort
                 DispAllErrors(henv, hdbc, hstmt);
                 if (colInf)
                     delete [] colInf;
@@ -2184,30 +2610,30 @@ wxDbColInf *wxDb::GetColumns(wxChar *tableName[], const wxChar *userID)
                     if (colNo < noCols)  // Some extra error checking to prevent memory overwrites
                     {
                         // NOTE: Only the ODBC 1.x fields are retrieved
-                        GetData( 1, SQL_C_CHAR,   (UCHAR*)  colInf[colNo].catalog,      128+1,                    &cb);
-                        GetData( 2, SQL_C_CHAR,   (UCHAR*)  colInf[colNo].schema,       128+1,                    &cb);
-                        GetData( 3, SQL_C_CHAR,   (UCHAR*)  colInf[colNo].tableName,    DB_MAX_TABLE_NAME_LEN+1,  &cb);
-                        GetData( 4, SQL_C_CHAR,   (UCHAR*)  colInf[colNo].colName,      DB_MAX_COLUMN_NAME_LEN+1, &cb);
+                        GetData( 1, SQL_C_WXCHAR, (UCHAR*)  colInf[colNo].catalog,      128+1,                    &cb);
+                        GetData( 2, SQL_C_WXCHAR, (UCHAR*)  colInf[colNo].schema,       128+1,                    &cb);
+                        GetData( 3, SQL_C_WXCHAR, (UCHAR*)  colInf[colNo].tableName,    DB_MAX_TABLE_NAME_LEN+1,  &cb);
+                        GetData( 4, SQL_C_WXCHAR, (UCHAR*)  colInf[colNo].colName,      DB_MAX_COLUMN_NAME_LEN+1, &cb);
                         GetData( 5, SQL_C_SSHORT, (UCHAR*) &colInf[colNo].sqlDataType,  0,                        &cb);
-                        GetData( 6, SQL_C_CHAR,   (UCHAR*)  colInf[colNo].typeName,     128+1,                    &cb);
-                        GetData( 7, SQL_C_SLONG,  (UCHAR*) &colInf[colNo].columnSize,   0,                        &cb);
-                        GetData( 8, SQL_C_SLONG,  (UCHAR*) &colInf[colNo].bufferLength, 0,                        &cb);
+                        GetData( 6, SQL_C_WXCHAR, (UCHAR*)  colInf[colNo].typeName,     128+1,                    &cb);
+                        GetData( 7, SQL_C_SLONG,  (UCHAR*) &colInf[colNo].columnLength, 0,                        &cb);
+                        GetData( 8, SQL_C_SSHORT, (UCHAR*) &colInf[colNo].bufferSize,   0,                        &cb);
                         GetData( 9, SQL_C_SSHORT, (UCHAR*) &colInf[colNo].decimalDigits,0,                        &cb);
                         GetData(10, SQL_C_SSHORT, (UCHAR*) &colInf[colNo].numPrecRadix, 0,                        &cb);
                         GetData(11, SQL_C_SSHORT, (UCHAR*) &colInf[colNo].nullable,     0,                        &cb);
-                        GetData(12, SQL_C_CHAR,   (UCHAR*)  colInf[colNo].remarks,      254+1,                    &cb);
+                        GetData(12, SQL_C_WXCHAR, (UCHAR*)  colInf[colNo].remarks,      254+1,                    &cb);
 
                         // Determine the wxDb data type that is used to represent the native data type of this data source
                         colInf[colNo].dbDataType = 0;
                         if (!wxStricmp(typeInfVarchar.TypeName,colInf[colNo].typeName))
                         {
 #ifdef _IODBC_
-                            // IODBC does not return a correct columnSize, so we set
-                            // columnSize = bufferLength if no column size was returned
-                            // IODBC returns the columnSize in bufferLength.. (bug)
-                            if (colInf[colNo].columnSize < 1)
+                            // IODBC does not return a correct columnLength, so we set
+                            // columnLength = bufferSize if no column length was returned
+                            // IODBC returns the columnLength in bufferSize. (bug)
+                            if (colInf[colNo].columnLength < 1)
                             {
-                               colInf[colNo].columnSize = colInf[colNo].bufferLength;
+                               colInf[colNo].columnLength = colInf[colNo].bufferSize;
                             }
 #endif
                             colInf[colNo].dbDataType = DB_DATA_TYPE_VARCHAR;
@@ -2225,7 +2651,7 @@ wxDbColInf *wxDb::GetColumns(wxChar *tableName[], const wxChar *userID)
                 }
             }
             if (retcode != SQL_NO_DATA_FOUND)
-            {  // Error occured, abort
+            {  // Error occurred, abort
                 DispAllErrors(henv, hdbc, hstmt);
                 if (colInf)
                     delete [] colInf;
@@ -2264,7 +2690,7 @@ wxDbColInf *wxDb::GetColumns(const wxString &tableName, UWORD *numCols, const wx
     wxDbColInf *colInf = 0;
 
     RETCODE  retcode;
-    SDWORD   cb;
+    SQLLEN   cb;
 
     wxString TableName;
 
@@ -2288,13 +2714,14 @@ wxDbColInf *wxDb::GetColumns(const wxString &tableName, UWORD *numCols, const wx
             // Mark the end of the array
             wxStrcpy(colInf[noCols].tableName, wxEmptyString);
             wxStrcpy(colInf[noCols].colName, wxEmptyString);
-            colInf[noCols].sqlDataType  = 0;
+            colInf[noCols].sqlDataType = 0;
         }
 
         TableName = tableName;
         // Oracle and Interbase table names are uppercase only, so force
         // the name to uppercase just in case programmer forgot to do this
         if ((Dbms() == dbmsORACLE) ||
+            (Dbms() == dbmsFIREBIRD) ||
             (Dbms() == dbmsINTERBASE))
             TableName = TableName.Upper();
 
@@ -2302,15 +2729,15 @@ wxDbColInf *wxDb::GetColumns(const wxString &tableName, UWORD *numCols, const wx
 
         // MySQL, SQLServer, and Access cannot accept a user name when looking up column names, so we
         // use the call below that leaves out the user name
-        if (!UserID.IsEmpty() &&
+        if (!UserID.empty() &&
             Dbms() != dbmsMY_SQL &&
             Dbms() != dbmsACCESS &&
             Dbms() != dbmsMS_SQL_SERVER)
         {
             retcode = SQLColumns(hstmt,
                                  NULL, 0,                                // All qualifiers
-                                 (UCHAR *) UserID.c_str(), SQL_NTS,    // Owner
-                                 (UCHAR *) TableName.c_str(), SQL_NTS,
+                                 (SQLTCHAR *) UserID.c_str(), SQL_NTS,    // Owner
+                                 (SQLTCHAR *) TableName.c_str(), SQL_NTS,
                                  NULL, 0);                               // All columns
         }
         else
@@ -2318,11 +2745,11 @@ wxDbColInf *wxDb::GetColumns(const wxString &tableName, UWORD *numCols, const wx
             retcode = SQLColumns(hstmt,
                                  NULL, 0,                                 // All qualifiers
                                  NULL, 0,                                 // Owner
-                                 (UCHAR *) TableName.c_str(), SQL_NTS,
+                                 (SQLTCHAR *) TableName.c_str(), SQL_NTS,
                                  NULL, 0);                                // All columns
         }
         if (retcode != SQL_SUCCESS)
-        {  // Error occured, abort
+        {  // Error occurred, abort
             DispAllErrors(henv, hdbc, hstmt);
             if (colInf)
                 delete [] colInf;
@@ -2341,19 +2768,19 @@ wxDbColInf *wxDb::GetColumns(const wxString &tableName, UWORD *numCols, const wx
                 if (colNo < noCols)  // Some extra error checking to prevent memory overwrites
                 {
                     // NOTE: Only the ODBC 1.x fields are retrieved
-                    GetData( 1, SQL_C_CHAR,   (UCHAR*)  colInf[colNo].catalog,      128+1,                    &cb);
-                    GetData( 2, SQL_C_CHAR,   (UCHAR*)  colInf[colNo].schema,       128+1,                    &cb);
-                    GetData( 3, SQL_C_CHAR,   (UCHAR*)  colInf[colNo].tableName,    DB_MAX_TABLE_NAME_LEN+1,  &cb);
-                    GetData( 4, SQL_C_CHAR,   (UCHAR*)  colInf[colNo].colName,      DB_MAX_COLUMN_NAME_LEN+1, &cb);
-                    GetData( 5, SQL_C_SSHORT, (UCHAR*) &colInf[colNo].sqlDataType,  0,                        &cb);
-                    GetData( 6, SQL_C_CHAR,   (UCHAR*)  colInf[colNo].typeName,     128+1,                    &cb);
-                    GetData( 7, SQL_C_SLONG,  (UCHAR*) &colInf[colNo].columnSize,   0,                        &cb);
+                    GetData( 1, SQL_C_WXCHAR, (UCHAR*)  colInf[colNo].catalog,      128+1,                     &cb);
+                    GetData( 2, SQL_C_WXCHAR, (UCHAR*)  colInf[colNo].schema,       128+1,                     &cb);
+                    GetData( 3, SQL_C_WXCHAR, (UCHAR*)  colInf[colNo].tableName,    DB_MAX_TABLE_NAME_LEN+1,   &cb);
+                    GetData( 4, SQL_C_WXCHAR, (UCHAR*)  colInf[colNo].colName,      DB_MAX_COLUMN_NAME_LEN+1,  &cb);
+                    GetData( 5, SQL_C_SSHORT, (UCHAR*) &colInf[colNo].sqlDataType,  0,                         &cb);
+                    GetData( 6, SQL_C_WXCHAR, (UCHAR*)  colInf[colNo].typeName,     128+1,                     &cb);
+                    GetData( 7, SQL_C_SLONG,  (UCHAR*) &colInf[colNo].columnLength, 0,                         &cb);
                     // BJO 991214 : SQL_C_SSHORT instead of SQL_C_SLONG, otherwise fails on Sparc (probably all 64 bit architectures)
-                    GetData( 8, SQL_C_SSHORT, (UCHAR*) &colInf[colNo].bufferLength, 0,                        &cb);
-                    GetData( 9, SQL_C_SSHORT, (UCHAR*) &colInf[colNo].decimalDigits,0,                        &cb);
-                    GetData(10, SQL_C_SSHORT, (UCHAR*) &colInf[colNo].numPrecRadix, 0,                        &cb);
-                    GetData(11, SQL_C_SSHORT, (UCHAR*) &colInf[colNo].nullable,     0,                        &cb);
-                    GetData(12, SQL_C_CHAR,   (UCHAR*)  colInf[colNo].remarks,      254+1,                    &cb);
+                    GetData( 8, SQL_C_SSHORT, (UCHAR*) &colInf[colNo].bufferSize,   0,                         &cb);
+                    GetData( 9, SQL_C_SSHORT, (UCHAR*) &colInf[colNo].decimalDigits,0,                         &cb);
+                    GetData(10, SQL_C_SSHORT, (UCHAR*) &colInf[colNo].numPrecRadix, 0,                         &cb);
+                    GetData(11, SQL_C_SSHORT, (UCHAR*) &colInf[colNo].nullable,     0,                         &cb);
+                    GetData(12, SQL_C_WXCHAR, (UCHAR*)  colInf[colNo].remarks,      254+1,                     &cb);
                     // Start Values for Primary/Foriegn Key (=No)
                     colInf[colNo].PkCol = 0;           // Primary key column   0=No; 1= First Key, 2 = Second Key etc.
                     colInf[colNo].PkTableName[0] = 0;  // Tablenames where Primary Key is used as a Foreign Key
@@ -2373,12 +2800,12 @@ wxDbColInf *wxDb::GetColumns(const wxString &tableName, UWORD *numCols, const wx
                     if (!wxStricmp(typeInfVarchar.TypeName, colInf[colNo].typeName))
                     {
 #ifdef _IODBC_
-                        // IODBC does not return a correct columnSize, so we set
-                        // columnSize = bufferLength if no column size was returned
-                        // IODBC returns the columnSize in bufferLength.. (bug)
-                        if (colInf[colNo].columnSize < 1)
+                        // IODBC does not return a correct columnLength, so we set
+                        // columnLength = bufferSize if no column length was returned
+                        // IODBC returns the columnLength in bufferSize. (bug)
+                        if (colInf[colNo].columnLength < 1)
                         {
-                           colInf[colNo].columnSize = colInf[colNo].bufferLength;
+                           colInf[colNo].columnLength = colInf[colNo].bufferSize;
                         }
 #endif
 
@@ -2398,7 +2825,7 @@ wxDbColInf *wxDb::GetColumns(const wxString &tableName, UWORD *numCols, const wx
             }
         }
         if (retcode != SQL_NO_DATA_FOUND)
-        {  // Error occured, abort
+        {  // Error occurred, abort
             DispAllErrors(henv, hdbc, hstmt);
             if (colInf)
                 delete [] colInf;
@@ -2427,7 +2854,7 @@ wxDbColInf *wxDb::GetColumns(const wxString &tableName, UWORD *numCols, const wx
 /*
     BJO 20000503
     These are tentative new GetColumns members which should be more database
-    independant and which always returns the columns in the order they were
+    independent and which always returns the columns in the order they were
     created.
 
     - The first one (wxDbColInf *wxDb::GetColumns(wxChar *tableName[], const
@@ -2480,7 +2907,7 @@ wxDbColInf *wxDb::GetColumns(wxChar *tableName[], const wxChar *userID)
     // Mark the end of the array
     wxStrcpy(colInf[noCols].tableName, wxEmptyString);
     wxStrcpy(colInf[noCols].colName, wxEmptyString);
-    colInf[noCols].sqlDataType  = 0;
+    colInf[noCols].sqlDataType = 0;
 
     // Merge ...
     int offset = 0;
@@ -2550,6 +2977,7 @@ wxDbColInf *wxDb::GetColumns(const wxString &tableName, int *numCols, const wxCh
         // Oracle and Interbase table names are uppercase only, so force
         // the name to uppercase just in case programmer forgot to do this
         if ((Dbms() == dbmsORACLE) ||
+            (Dbms() == dbmsFIREBIRD) ||
             (Dbms() == dbmsINTERBASE))
             TableName = TableName.Upper();
 
@@ -2557,7 +2985,7 @@ wxDbColInf *wxDb::GetColumns(const wxString &tableName, int *numCols, const wxCh
 
         // MySQL, SQLServer, and Access cannot accept a user name when looking up column names, so we
         // use the call below that leaves out the user name
-        if (!UserID.IsEmpty() &&
+        if (!UserID.empty() &&
             Dbms() != dbmsMY_SQL &&
             Dbms() != dbmsACCESS &&
             Dbms() != dbmsMS_SQL_SERVER)
@@ -2577,7 +3005,7 @@ wxDbColInf *wxDb::GetColumns(const wxString &tableName, int *numCols, const wxCh
                                  NULL, 0);                             // All columns
         }
         if (retcode != SQL_SUCCESS)
-        {  // Error occured, abort
+        {  // Error occurred, abort
             DispAllErrors(henv, hdbc, hstmt);
             if (colInf)
                 delete [] colInf;
@@ -2596,18 +3024,18 @@ wxDbColInf *wxDb::GetColumns(const wxString &tableName, int *numCols, const wxCh
                 if (colNo < noCols)  // Some extra error checking to prevent memory overwrites
                 {
                     // NOTE: Only the ODBC 1.x fields are retrieved
-                    GetData( 1, SQL_C_CHAR,   (UCHAR*)  colInf[colNo].catalog,      128+1,                    &cb);
-                    GetData( 2, SQL_C_CHAR,   (UCHAR*)  colInf[colNo].schema,       128+1,                    &cb);
-                    GetData( 3, SQL_C_CHAR,   (UCHAR*)  colInf[colNo].tableName,    DB_MAX_TABLE_NAME_LEN+1,  &cb);
-                    GetData( 4, SQL_C_CHAR,   (UCHAR*)  colInf[colNo].colName,      DB_MAX_COLUMN_NAME_LEN+1, &cb);
-                    GetData( 5, SQL_C_SSHORT, (UCHAR*) &colInf[colNo].sqlDataType,  0,                        &cb);
-                    GetData( 6, SQL_C_CHAR,   (UCHAR*)  colInf[colNo].typeName,     128+1,                    &cb);
-                    GetData( 7, SQL_C_SLONG,  (UCHAR*) &colInf[colNo].columnSize,   0,                        &cb);
-                    GetData( 8, SQL_C_SSHORT, (UCHAR*) &colInf[colNo].bufferLength, 0,                        &cb);
-                    GetData( 9, SQL_C_SSHORT, (UCHAR*) &colInf[colNo].decimalDigits,0,                        &cb);
-                    GetData(10, SQL_C_SSHORT, (UCHAR*) &colInf[colNo].numPrecRadix, 0,                        &cb);
-                    GetData(11, SQL_C_SSHORT, (UCHAR*) &colInf[colNo].nullable,     0,                        &cb);
-                    GetData(12, SQL_C_CHAR,   (UCHAR*)  colInf[colNo].remarks,      254+1,                    &cb);
+                    GetData( 1, SQL_C_WXCHAR, (UCHAR*)  colInf[colNo].catalog,      128+1,                     &cb);
+                    GetData( 2, SQL_C_WXCHAR, (UCHAR*)  colInf[colNo].schema,       128+1,                     &cb);
+                    GetData( 3, SQL_C_WXCHAR, (UCHAR*)  colInf[colNo].tableName,    DB_MAX_TABLE_NAME_LEN+1,   &cb);
+                    GetData( 4, SQL_C_WXCHAR, (UCHAR*)  colInf[colNo].colName,      DB_MAX_COLUMN_NAME_LEN+1,  &cb);
+                    GetData( 5, SQL_C_SSHORT, (UCHAR*) &colInf[colNo].sqlDataType,  0,                         &cb);
+                    GetData( 6, SQL_C_WXCHAR, (UCHAR*)  colInf[colNo].typeName,     128+1,                     &cb);
+                    GetData( 7, SQL_C_SLONG,  (UCHAR*) &colInf[colNo].columnLength, 0,                         &cb);
+                    GetData( 8, SQL_C_SSHORT, (UCHAR*) &colInf[colNo].bufferSize,   0,                         &cb);
+                    GetData( 9, SQL_C_SSHORT, (UCHAR*) &colInf[colNo].decimalDigits,0,                         &cb);
+                    GetData(10, SQL_C_SSHORT, (UCHAR*) &colInf[colNo].numPrecRadix, 0,                         &cb);
+                    GetData(11, SQL_C_SSHORT, (UCHAR*) &colInf[colNo].nullable,     0,                         &cb);
+                    GetData(12, SQL_C_WXCHAR, (UCHAR*)  colInf[colNo].remarks,      254+1,                     &cb);
                     // Start Values for Primary/Foriegn Key (=No)
                     colInf[colNo].PkCol = 0;           // Primary key column   0=No; 1= First Key, 2 = Second Key etc.
                     colInf[colNo].PkTableName[0] = 0;  // Tablenames where Primary Key is used as a Foreign Key
@@ -2615,12 +3043,12 @@ wxDbColInf *wxDb::GetColumns(const wxString &tableName, int *numCols, const wxCh
                     colInf[colNo].FkTableName[0] = 0;  // Foreign key table name
 
 #ifdef _IODBC_
-                    // IODBC does not return a correct columnSize, so we set
-                    // columnSize = bufferLength if no column size was returned
-                    // IODBC returns the columnSize in bufferLength.. (bug)
-                    if (colInf[colNo].columnSize < 1)
+                    // IODBC does not return a correct columnLength, so we set
+                    // columnLength = bufferSize if no column length was returned
+                    // IODBC returns the columnLength in bufferSize. (bug)
+                    if (colInf[colNo].columnLength < 1)
                     {
-                       colInf[colNo].columnSize = colInf[colNo].bufferLength;
+                       colInf[colNo].columnLength = colInf[colNo].bufferSize;
                     }
 #endif
 
@@ -2629,14 +3057,22 @@ wxDbColInf *wxDb::GetColumns(const wxString &tableName, int *numCols, const wxCh
                     // Get the intern datatype
                     switch (colInf[colNo].sqlDataType)
                     {
+#if wxUSE_UNICODE
+    #if defined(SQL_WCHAR)
+                        case SQL_WCHAR:
+    #endif
+    #if defined(SQL_WVARCHAR)
+                        case SQL_WVARCHAR:
+    #endif
+#endif
                         case SQL_VARCHAR:
                         case SQL_CHAR:
                             colInf[colNo].dbDataType = DB_DATA_TYPE_VARCHAR;
                         break;
-
                         case SQL_TINYINT:
                         case SQL_SMALLINT:
                         case SQL_INTEGER:
+                        case SQL_BIT:
                             colInf[colNo].dbDataType = DB_DATA_TYPE_INTEGER;
                             break;
                         case SQL_DOUBLE:
@@ -2647,6 +3083,7 @@ wxDbColInf *wxDb::GetColumns(const wxString &tableName, int *numCols, const wxCh
                             colInf[colNo].dbDataType = DB_DATA_TYPE_FLOAT;
                             break;
                         case SQL_DATE:
+                        case SQL_TIMESTAMP:
                             colInf[colNo].dbDataType = DB_DATA_TYPE_DATE;
                             break;
                         case SQL_BINARY:
@@ -2655,7 +3092,7 @@ wxDbColInf *wxDb::GetColumns(const wxString &tableName, int *numCols, const wxCh
 #ifdef __WXDEBUG__
                         default:
                             wxString errMsg;
-                            errMsg.Printf(wxT("SQL Data type %d currently not supported by wxWindows"), colInf[colNo].sqlDataType);
+                            errMsg.Printf(wxT("SQL Data type %d currently not supported by wxWidgets"), colInf[colNo].sqlDataType);
                             wxLogDebug(errMsg,wxT("ODBC DEBUG MESSAGE"));
 #endif
                     }
@@ -2664,7 +3101,7 @@ wxDbColInf *wxDb::GetColumns(const wxString &tableName, int *numCols, const wxCh
             }
         }
         if (retcode != SQL_NO_DATA_FOUND)
-        {  // Error occured, abort
+        {  // Error occurred, abort
             DispAllErrors(henv, hdbc, hstmt);
             if (colInf)
                 delete [] colInf;
@@ -2687,7 +3124,7 @@ wxDbColInf *wxDb::GetColumns(const wxString &tableName, int *numCols, const wxCh
     // Build a generic SELECT statement which returns 0 rows
     wxString Stmt;
 
-    Stmt.Printf(wxT("select * from %s where 0=1"), tableName);
+    Stmt.Printf(wxT("select * from \"%s\" where 0=1"), tableName);
 
     // Execute query
     if (SQLExecDirect(hstmt, (UCHAR FAR *) Stmt.c_str(), SQL_NTS) != SQL_SUCCESS)
@@ -2788,6 +3225,7 @@ int wxDb::GetColumnCount(const wxString &tableName, const wxChar *userID)
     // Oracle and Interbase table names are uppercase only, so force
     // the name to uppercase just in case programmer forgot to do this
     if ((Dbms() == dbmsORACLE) ||
+        (Dbms() == dbmsFIREBIRD) ||
         (Dbms() == dbmsINTERBASE))
         TableName = TableName.Upper();
 
@@ -2795,15 +3233,15 @@ int wxDb::GetColumnCount(const wxString &tableName, const wxChar *userID)
 
     // MySQL, SQLServer, and Access cannot accept a user name when looking up column names, so we
     // use the call below that leaves out the user name
-    if (!UserID.IsEmpty() &&
+    if (!UserID.empty() &&
         Dbms() != dbmsMY_SQL &&
         Dbms() != dbmsACCESS &&
         Dbms() != dbmsMS_SQL_SERVER)
     {
         retcode = SQLColumns(hstmt,
                              NULL, 0,                                // All qualifiers
-                             (UCHAR *) UserID.c_str(), SQL_NTS,      // Owner
-                             (UCHAR *) TableName.c_str(), SQL_NTS,
+                             (SQLTCHAR *) UserID.c_str(), SQL_NTS,      // Owner
+                             (SQLTCHAR *) TableName.c_str(), SQL_NTS,
                              NULL, 0);                               // All columns
     }
     else
@@ -2811,11 +3249,11 @@ int wxDb::GetColumnCount(const wxString &tableName, const wxChar *userID)
         retcode = SQLColumns(hstmt,
                              NULL, 0,                                // All qualifiers
                              NULL, 0,                                // Owner
-                             (UCHAR *) TableName.c_str(), SQL_NTS,
+                             (SQLTCHAR *) TableName.c_str(), SQL_NTS,
                              NULL, 0);                               // All columns
     }
     if (retcode != SQL_SUCCESS)
-    {  // Error occured, abort
+    {  // Error occurred, abort
         DispAllErrors(henv, hdbc, hstmt);
         SQLFreeStmt(hstmt, SQL_CLOSE);
         return(-1);
@@ -2826,7 +3264,7 @@ int wxDb::GetColumnCount(const wxString &tableName, const wxChar *userID)
         noCols++;
 
     if (retcode != SQL_NO_DATA_FOUND)
-    {  // Error occured, abort
+    {  // Error occurred, abort
         DispAllErrors(henv, hdbc, hstmt);
         SQLFreeStmt(hstmt, SQL_CLOSE);
         return(-1);
@@ -2847,7 +3285,7 @@ wxDbInf *wxDb::GetCatalog(const wxChar *userID)
  * --          : uses SQLTables and fills pTableInf;              ------
  * --          : pColInf is set to NULL and numCols to 0;         ------
  * --          : returns pDbInf (wxDbInf)                         ------
- * --            - if unsuccesfull (pDbInf == NULL)               ------
+ * --            - if unsuccessful (pDbInf == NULL)               ------
  * --          : pColInf can be filled with GetColumns(..);       ------
  * --          : numCols   can be filled with GetColumnCount(..); ------
  * ---------------------------------------------------------------------
@@ -2862,18 +3300,20 @@ wxDbInf *wxDb::GetCatalog(const wxChar *userID)
  *       to avoid undesired unbinding of columns.
  */
 {
-    wxDbInf *pDbInf = NULL; // Array of catalog entries
     int      noTab = 0;     // Counter while filling table entries
     int      pass;
     RETCODE  retcode;
-    SDWORD   cb;
+    SQLLEN   cb;
     wxString tblNameSave;
 
     wxString UserID;
     convertUserID(userID,UserID);
 
     //-------------------------------------------------------------
-    pDbInf = new wxDbInf;          // Create the Database Array
+    // Create the Database Array of catalog entries
+
+    wxDbInf *pDbInf = new wxDbInf;
+
     //-------------------------------------------------------------
     // Table Information
     // Pass 1 - Determine how many Tables there are.
@@ -2886,14 +3326,14 @@ wxDbInf *wxDb::GetCatalog(const wxChar *userID)
         SQLFreeStmt(hstmt, SQL_CLOSE);   // Close if Open
         tblNameSave.Empty();
 
-        if (!UserID.IsEmpty() &&
+        if (!UserID.empty() &&
             Dbms() != dbmsMY_SQL &&
             Dbms() != dbmsACCESS &&
             Dbms() != dbmsMS_SQL_SERVER)
         {
             retcode = SQLTables(hstmt,
                                 NULL, 0,                             // All qualifiers
-                                (UCHAR *) UserID.c_str(), SQL_NTS,   // User specified
+                                (SQLTCHAR *) UserID.c_str(), SQL_NTS,   // User specified
                                 NULL, 0,                             // All tables
                                 NULL, 0);                            // All columns
         }
@@ -2920,8 +3360,8 @@ wxDbInf *wxDb::GetCatalog(const wxChar *userID)
             {
                 if (pDbInf->numTables == 0)
                 {
-                    GetData( 1, SQL_C_CHAR,   (UCHAR*)  pDbInf->catalog,  128+1, &cb);
-                    GetData( 2, SQL_C_CHAR,   (UCHAR*)  pDbInf->schema,   128+1, &cb);
+                    GetData( 1, SQL_C_WXCHAR,   (UCHAR*)  pDbInf->catalog,  128+1, &cb);
+                    GetData( 2, SQL_C_WXCHAR,   (UCHAR*)  pDbInf->schema,   128+1, &cb);
                  }
                  pDbInf->numTables++;      // Counter for Tables
             }  // if (pass == 1)
@@ -2933,9 +3373,9 @@ wxDbInf *wxDb::GetCatalog(const wxChar *userID)
                     noTab = 0;
                 } // if (pDbInf->pTableInf == NULL)   // Has the Table Array been created
 
-                GetData( 3, SQL_C_CHAR,   (UCHAR*)  (pDbInf->pTableInf+noTab)->tableName,    DB_MAX_TABLE_NAME_LEN+1, &cb);
-                GetData( 4, SQL_C_CHAR,   (UCHAR*)  (pDbInf->pTableInf+noTab)->tableType,    30+1,                    &cb);
-                GetData( 5, SQL_C_CHAR,   (UCHAR*)  (pDbInf->pTableInf+noTab)->tableRemarks, 254+1,                   &cb);
+                GetData( 3, SQL_C_WXCHAR,   (UCHAR*)  (pDbInf->pTableInf+noTab)->tableName,    DB_MAX_TABLE_NAME_LEN+1, &cb);
+                GetData( 4, SQL_C_WXCHAR,   (UCHAR*)  (pDbInf->pTableInf+noTab)->tableType,    30+1,                    &cb);
+                GetData( 5, SQL_C_WXCHAR,   (UCHAR*)  (pDbInf->pTableInf+noTab)->tableRemarks, 254+1,                   &cb);
 
                 noTab++;
             }  // if
@@ -2946,7 +3386,7 @@ wxDbInf *wxDb::GetCatalog(const wxChar *userID)
     // Query how many columns are in each table
     for (noTab=0;noTab<pDbInf->numTables;noTab++)
     {
-        (pDbInf->pTableInf+noTab)->numCols = GetColumnCount((pDbInf->pTableInf+noTab)->tableName,UserID);
+        (pDbInf->pTableInf+noTab)->numCols = (UWORD)GetColumnCount((pDbInf->pTableInf+noTab)->tableName,UserID);
     }
 
     return pDbInf;
@@ -2974,7 +3414,7 @@ bool wxDb::Catalog(const wxChar *userID, const wxString &fileName)
     wxASSERT(fileName.Length());
 
     RETCODE   retcode;
-    SDWORD    cb;
+    SQLLEN    cb;
     wxChar    tblName[DB_MAX_TABLE_NAME_LEN+1];
     wxString  tblNameSave;
     wxChar    colName[DB_MAX_COLUMN_NAME_LEN+1];
@@ -2982,24 +3422,25 @@ bool wxDb::Catalog(const wxChar *userID, const wxString &fileName)
     wxChar    typeName[30+1];
     SDWORD    precision, length;
 
-    FILE *fp = fopen(fileName.c_str(),wxT("wt"));
+    FILE *fp = wxFopen(fileName.c_str(),wxT("wt"));
     if (fp == NULL)
-        return(FALSE);
+        return false;
 
     SQLFreeStmt(hstmt, SQL_CLOSE);
 
     wxString UserID;
     convertUserID(userID,UserID);
 
-    if (!UserID.IsEmpty() &&
+    if (!UserID.empty() &&
         Dbms() != dbmsMY_SQL &&
         Dbms() != dbmsACCESS &&
+        Dbms() != dbmsFIREBIRD &&
         Dbms() != dbmsINTERBASE &&
         Dbms() != dbmsMS_SQL_SERVER)
     {
         retcode = SQLColumns(hstmt,
                              NULL, 0,                                // All qualifiers
-                             (UCHAR *) UserID.c_str(), SQL_NTS,      // User specified
+                             (SQLTCHAR *) UserID.c_str(), SQL_NTS,      // User specified
                              NULL, 0,                                // All tables
                              NULL, 0);                               // All columns
     }
@@ -3015,53 +3456,53 @@ bool wxDb::Catalog(const wxChar *userID, const wxString &fileName)
     {
         DispAllErrors(henv, hdbc, hstmt);
         fclose(fp);
-        return(FALSE);
+        return false;
     }
 
     wxString outStr;
     tblNameSave.Empty();
     int cnt = 0;
 
-    while (TRUE)
+    while (true)
     {
         retcode = SQLFetch(hstmt);
         if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO)
             break;
 
+        GetData(3,SQL_C_WXCHAR,  (UCHAR *) tblName,     DB_MAX_TABLE_NAME_LEN+1, &cb);
+        GetData(4,SQL_C_WXCHAR,  (UCHAR *) colName,     DB_MAX_COLUMN_NAME_LEN+1,&cb);
+        GetData(5,SQL_C_SSHORT,  (UCHAR *)&sqlDataType, 0,                       &cb);
+        GetData(6,SQL_C_WXCHAR,  (UCHAR *) typeName,    sizeof(typeName),        &cb);
+        GetData(7,SQL_C_SLONG,   (UCHAR *)&precision,   0,                       &cb);
+        GetData(8,SQL_C_SLONG,   (UCHAR *)&length,      0,                       &cb);
+
         if (wxStrcmp(tblName, tblNameSave.c_str()))
         {
             if (cnt)
-                fputs(wxT("\n"), fp);
-            fputs(wxT("================================ "), fp);
-            fputs(wxT("================================ "), fp);
-            fputs(wxT("===================== "), fp);
-            fputs(wxT("========= "), fp);
-            fputs(wxT("=========\n"), fp);
+                wxFputs(wxT("\n"), fp);
+            wxFputs(wxT("================================ "), fp);
+            wxFputs(wxT("================================ "), fp);
+            wxFputs(wxT("===================== "), fp);
+            wxFputs(wxT("========= "), fp);
+            wxFputs(wxT("=========\n"), fp);
             outStr.Printf(wxT("%-32s %-32s %-21s %9s %9s\n"),
                 wxT("TABLE NAME"), wxT("COLUMN NAME"), wxT("DATA TYPE"), wxT("PRECISION"), wxT("LENGTH"));
-            fputs(outStr.c_str(), fp);
-            fputs(wxT("================================ "), fp);
-            fputs(wxT("================================ "), fp);
-            fputs(wxT("===================== "), fp);
-            fputs(wxT("========= "), fp);
-            fputs(wxT("=========\n"), fp);
+            wxFputs(outStr.c_str(), fp);
+            wxFputs(wxT("================================ "), fp);
+            wxFputs(wxT("================================ "), fp);
+            wxFputs(wxT("===================== "), fp);
+            wxFputs(wxT("========= "), fp);
+            wxFputs(wxT("=========\n"), fp);
             tblNameSave = tblName;
         }
 
-      GetData(3,SQL_C_CHAR,  (UCHAR *) tblName,     DB_MAX_TABLE_NAME_LEN+1, &cb);
-      GetData(4,SQL_C_CHAR,  (UCHAR *) colName,     DB_MAX_COLUMN_NAME_LEN+1,&cb);
-      GetData(5,SQL_C_SSHORT,(UCHAR *)&sqlDataType, 0,                       &cb);
-      GetData(6,SQL_C_CHAR,  (UCHAR *) typeName,    sizeof(typeName),        &cb);
-      GetData(7,SQL_C_SLONG, (UCHAR *)&precision,   0,                       &cb);
-      GetData(8,SQL_C_SLONG, (UCHAR *)&length,      0,                       &cb);
-
-        outStr.Printf(wxT("%-32s %-32s (%04d)%-15s %9d %9d\n"),
+        outStr.Printf(wxT("%-32s %-32s (%04d)%-15s %9ld %9ld\n"),
             tblName, colName, sqlDataType, typeName, precision, length);
-        if (fputs(outStr.c_str(), fp) == EOF)
+        if (wxFputs(outStr.c_str(), fp) == EOF)
         {
             SQLFreeStmt(hstmt, SQL_CLOSE);
             fclose(fp);
-            return(FALSE);
+            return false;
         }
         cnt++;
     }
@@ -3079,7 +3520,7 @@ bool wxDb::Catalog(const wxChar *userID, const wxString &fileName)
 
 bool wxDb::TableExists(const wxString &tableName, const wxChar *userID, const wxString &tablePath)
 /*
- * Table name can refer to a table, view, alias or synonym.  Returns TRUE
+ * Table name can refer to a table, view, alias or synonym.  Returns true
  * if the object exists in the database.  This function does not indicate
  * whether or not the user has privleges to query or perform other functions
  * on the table.
@@ -3114,6 +3555,7 @@ bool wxDb::TableExists(const wxString &tableName, const wxChar *userID, const wx
     // Oracle and Interbase table names are uppercase only, so force
     // the name to uppercase just in case programmer forgot to do this
     if ((Dbms() == dbmsORACLE) ||
+        (Dbms() == dbmsFIREBIRD) ||
         (Dbms() == dbmsINTERBASE))
         TableName = TableName.Upper();
 
@@ -3122,18 +3564,19 @@ bool wxDb::TableExists(const wxString &tableName, const wxChar *userID, const wx
 
     // Some databases cannot accept a user name when looking up table names,
     // so we use the call below that leaves out the user name
-    if (!UserID.IsEmpty() &&
+    if (!UserID.empty() &&
         Dbms() != dbmsMY_SQL &&
         Dbms() != dbmsACCESS &&
         Dbms() != dbmsMS_SQL_SERVER &&
         Dbms() != dbmsDB2 &&
+        Dbms() != dbmsFIREBIRD &&
         Dbms() != dbmsINTERBASE &&
         Dbms() != dbmsPERVASIVE_SQL)
     {
         retcode = SQLTables(hstmt,
                             NULL, 0,                                  // All qualifiers
-                            (UCHAR *) UserID.c_str(), SQL_NTS,        // Only tables owned by this user
-                            (UCHAR FAR *)TableName.c_str(), SQL_NTS,
+                            (SQLTCHAR *) UserID.c_str(), SQL_NTS,        // Only tables owned by this user
+                            (SQLTCHAR FAR *)TableName.c_str(), SQL_NTS,
                             NULL, 0);                                 // All table types
     }
     else
@@ -3141,7 +3584,7 @@ bool wxDb::TableExists(const wxString &tableName, const wxChar *userID, const wx
         retcode = SQLTables(hstmt,
                             NULL, 0,                                  // All qualifiers
                             NULL, 0,                                  // All owners
-                            (UCHAR FAR *)TableName.c_str(), SQL_NTS,
+                            (SQLTCHAR FAR *)TableName.c_str(), SQL_NTS,
                             NULL, 0);                                 // All table types
     }
     if (retcode != SQL_SUCCESS)
@@ -3156,19 +3599,19 @@ bool wxDb::TableExists(const wxString &tableName, const wxChar *userID, const wx
 
     SQLFreeStmt(hstmt, SQL_CLOSE);
 
-    return(TRUE);
+    return true;
 
 }  // wxDb::TableExists()
 
 
 /********** wxDb::TablePrivileges() **********/
 bool wxDb::TablePrivileges(const wxString &tableName, const wxString &priv, const wxChar *userID,
-                            const wxChar *schema, const wxString &tablePath)
+                            const wxChar *schema, const wxString &WXUNUSED(tablePath))
 {
     wxASSERT(tableName.Length());
 
     wxDbTablePrivilegeInfo  result;
-    SDWORD  cbRetVal;
+    SQLLEN  cbRetVal;
     RETCODE retcode;
 
     // We probably need to be able to dynamically set this based on
@@ -3185,6 +3628,7 @@ bool wxDb::TablePrivileges(const wxString &tableName, const wxString &priv, cons
     // Oracle and Interbase table names are uppercase only, so force
     // the name to uppercase just in case programmer forgot to do this
     if ((Dbms() == dbmsORACLE) ||
+        (Dbms() == dbmsFIREBIRD) ||
         (Dbms() == dbmsINTERBASE))
         TableName = TableName.Upper();
 
@@ -3192,95 +3636,123 @@ bool wxDb::TablePrivileges(const wxString &tableName, const wxString &priv, cons
 
     // Some databases cannot accept a user name when looking up table names,
     // so we use the call below that leaves out the user name
-    if (!Schema.IsEmpty() &&
+    if (!Schema.empty() &&
         Dbms() != dbmsMY_SQL &&
         Dbms() != dbmsACCESS &&
         Dbms() != dbmsMS_SQL_SERVER)
     {
         retcode = SQLTablePrivileges(hstmt,
                                      NULL, 0,                                    // Catalog
-                                     (UCHAR FAR *)Schema.c_str(), SQL_NTS,               // Schema
-                                     (UCHAR FAR *)TableName.c_str(), SQL_NTS);
+                                     (SQLTCHAR FAR *)Schema.c_str(), SQL_NTS,               // Schema
+                                     (SQLTCHAR FAR *)TableName.c_str(), SQL_NTS);
     }
     else
     {
         retcode = SQLTablePrivileges(hstmt,
                                      NULL, 0,                                    // Catalog
                                      NULL, 0,                                    // Schema
-                                     (UCHAR FAR *)TableName.c_str(), SQL_NTS);
+                                     (SQLTCHAR FAR *)TableName.c_str(), SQL_NTS);
     }
 
 #ifdef DBDEBUG_CONSOLE
-    fprintf(stderr ,wxT("SQLTablePrivileges() returned %i \n"),retcode);
+    wxFprintf(stderr ,wxT("SQLTablePrivileges() returned %i \n"),retcode);
 #endif
 
     if ((retcode != SQL_SUCCESS) && (retcode != SQL_SUCCESS_WITH_INFO))
-        return(DispAllErrors(henv, hdbc, hstmt));
+        return (DispAllErrors(henv, hdbc, hstmt));
 
-    bool failed = FALSE;
+    bool failed = false;
     retcode = SQLFetch(hstmt);
     while (retcode == SQL_SUCCESS || retcode == SQL_SUCCESS_WITH_INFO)
     {
-        if (SQLGetData(hstmt, 1, SQL_C_CHAR, (UCHAR*) result.tableQual, sizeof(result.tableQual), &cbRetVal) != SQL_SUCCESS)
-            failed = TRUE;
+        if (SQLGetData(hstmt, 1, SQL_C_WXCHAR, (UCHAR*) result.tableQual, sizeof(result.tableQual), &cbRetVal) != SQL_SUCCESS)
+            failed = true;
 
-        if (!failed && SQLGetData(hstmt, 2, SQL_C_CHAR, (UCHAR*) result.tableOwner, sizeof(result.tableOwner), &cbRetVal) != SQL_SUCCESS)
-            failed = TRUE;
+        if (!failed && SQLGetData(hstmt, 2, SQL_C_WXCHAR, (UCHAR*) result.tableOwner, sizeof(result.tableOwner), &cbRetVal) != SQL_SUCCESS)
+            failed = true;
 
-        if (!failed && SQLGetData(hstmt, 3, SQL_C_CHAR, (UCHAR*) result.tableName, sizeof(result.tableName), &cbRetVal) != SQL_SUCCESS)
-            failed = TRUE;
+        if (!failed && SQLGetData(hstmt, 3, SQL_C_WXCHAR, (UCHAR*) result.tableName, sizeof(result.tableName), &cbRetVal) != SQL_SUCCESS)
+            failed = true;
 
-        if (!failed && SQLGetData(hstmt, 4, SQL_C_CHAR, (UCHAR*) result.grantor, sizeof(result.grantor), &cbRetVal) != SQL_SUCCESS)
-            failed = TRUE;
+        if (!failed && SQLGetData(hstmt, 4, SQL_C_WXCHAR, (UCHAR*) result.grantor, sizeof(result.grantor), &cbRetVal) != SQL_SUCCESS)
+            failed = true;
 
-        if (!failed && SQLGetData(hstmt, 5, SQL_C_CHAR, (UCHAR*) result.grantee, sizeof(result.grantee), &cbRetVal) != SQL_SUCCESS)
-            failed = TRUE;
+        if (!failed && SQLGetData(hstmt, 5, SQL_C_WXCHAR, (UCHAR*) result.grantee, sizeof(result.grantee), &cbRetVal) != SQL_SUCCESS)
+            failed = true;
 
-        if (!failed && SQLGetData(hstmt, 6, SQL_C_CHAR, (UCHAR*) result.privilege, sizeof(result.privilege), &cbRetVal) != SQL_SUCCESS)
-            failed = TRUE;
+        if (!failed && SQLGetData(hstmt, 6, SQL_C_WXCHAR, (UCHAR*) result.privilege, sizeof(result.privilege), &cbRetVal) != SQL_SUCCESS)
+            failed = true;
 
-        if (!failed && SQLGetData(hstmt, 7, SQL_C_CHAR, (UCHAR*) result.grantable, sizeof(result.grantable), &cbRetVal) != SQL_SUCCESS)
-            failed = TRUE;
+        if (!failed && SQLGetData(hstmt, 7, SQL_C_WXCHAR, (UCHAR*) result.grantable, sizeof(result.grantable), &cbRetVal) != SQL_SUCCESS)
+            failed = true;
 
         if (failed)
         {
             return(DispAllErrors(henv, hdbc, hstmt));
         }
 #ifdef DBDEBUG_CONSOLE
-        fprintf(stderr,wxT("Scanning %s privilege on table %s.%s granted by %s to %s\n"),
+        wxFprintf(stderr,wxT("Scanning %s privilege on table %s.%s granted by %s to %s\n"),
                 result.privilege,result.tableOwner,result.tableName,
                 result.grantor, result.grantee);
 #endif
 
-        if (UserID.IsSameAs(result.tableOwner,FALSE))
+        if (UserID.IsSameAs(result.tableOwner,false))
         {
             SQLFreeStmt(hstmt, SQL_CLOSE);
-            return TRUE;
+            return true;
         }
 
-        if (UserID.IsSameAs(result.grantee,FALSE) &&
+        if (UserID.IsSameAs(result.grantee,false) &&
             !wxStrcmp(result.privilege,priv))
         {
             SQLFreeStmt(hstmt, SQL_CLOSE);
-            return TRUE;
+            return true;
         }
 
         if (!wxStrcmp(result.grantee,curRole) &&
             !wxStrcmp(result.privilege,priv))
         {
             SQLFreeStmt(hstmt, SQL_CLOSE);
-            return TRUE;
+            return true;
         }
 
         retcode = SQLFetch(hstmt);
     }
 
     SQLFreeStmt(hstmt, SQL_CLOSE);
-    return FALSE;
+    return false;
 
 }  // wxDb::TablePrivileges
 
 
+const wxString wxDb::SQLTableName(const wxChar *tableName)
+{
+    wxString TableName;
+
+    if (Dbms() == dbmsACCESS)
+        TableName = _T("\"");
+    TableName += tableName;
+    if (Dbms() == dbmsACCESS)
+        TableName += _T("\"");
+
+    return TableName;
+}  // wxDb::SQLTableName()
+
+
+const wxString wxDb::SQLColumnName(const wxChar *colName)
+{
+    wxString ColName;
+
+    if (Dbms() == dbmsACCESS)
+        ColName = _T("\"");
+    ColName += colName;
+    if (Dbms() == dbmsACCESS)
+        ColName += _T("\"");
+
+    return ColName;
+}  // wxDb::SQLColumnName()
+
+
 /********** wxDb::SetSqlLogging() **********/
 bool wxDb::SetSqlLogging(wxDbSqlLogState state, const wxString &filename, bool append)
 {
@@ -3291,9 +3763,9 @@ bool wxDb::SetSqlLogging(wxDbSqlLogState state, const wxString &filename, bool a
     {
         if (fpSqlLog == 0)
         {
-            fpSqlLog = fopen(filename, (append ? wxT("at") : wxT("wt")));
+            fpSqlLog = wxFopen(filename.c_str(), (append ? wxT("at") : wxT("wt")));
             if (fpSqlLog == NULL)
-                return(FALSE);
+                return false;
         }
     }
     else  // sqlLogOFF
@@ -3301,13 +3773,13 @@ bool wxDb::SetSqlLogging(wxDbSqlLogState state, const wxString &filename, bool a
         if (fpSqlLog)
         {
             if (fclose(fpSqlLog))
-                return(FALSE);
+                return false;
             fpSqlLog = 0;
         }
     }
 
     sqlLogState = state;
-    return(TRUE);
+    return true;
 
 }  // wxDb::SetSqlLogging()
 
@@ -3318,16 +3790,16 @@ bool wxDb::WriteSqlLog(const wxString &logMsg)
     wxASSERT(logMsg.Length());
 
     if (fpSqlLog == 0 || sqlLogState == sqlLogOFF)
-        return(FALSE);
+        return false;
 
-    if (fputs(wxT("\n"),   fpSqlLog) == EOF)
-        return(FALSE);
-    if (fputs(logMsg, fpSqlLog) == EOF)
-        return(FALSE);
-    if (fputs(wxT("\n"),   fpSqlLog) == EOF)
-        return(FALSE);
+    if (wxFputs(wxT("\n"),   fpSqlLog) == EOF)
+        return false;
+    if (wxFputs(logMsg, fpSqlLog) == EOF)
+        return false;
+    if (wxFputs(wxT("\n"),   fpSqlLog) == EOF)
+        return false;
 
-    return(TRUE);
+    return true;
 
 }  // wxDb::WriteSqlLog()
 
@@ -3355,7 +3827,7 @@ wxDBMS wxDb::Dbms(void)
  *        - Does not support the SQL_TIMESTAMP structure
  *        - Supports only one cursor and one connect (apparently? with Microsoft driver only?)
  *        - Does not automatically create the primary index if the 'keyField' param of SetColDef
- *            is TRUE.  The user must create ALL indexes from their program.
+ *            is true.  The user must create ALL indexes from their program.
  *        - Table names can only be 8 characters long
  *        - Column names can only be 10 characters long
  *
@@ -3401,8 +3873,16 @@ wxDBMS wxDb::Dbms(void)
     if (dbmsType != dbmsUNIDENTIFIED)
         return(dbmsType);
 
+#ifdef DBDEBUG_CONSOLE
+               // When run in console mode, use standard out to display errors.
+               cout << "Database connecting to: " << dbInf.dbmsName << endl;
+#endif  // DBDEBUG_CONSOLE
+
+    wxLogDebug(wxT("Database connecting to: "));
+    wxLogDebug(dbInf.dbmsName);
+
     wxChar baseName[25+1];
-    wxStrncpy(baseName,dbInf.dbmsName,25);
+    wxStrncpy(baseName, dbInf.dbmsName, 25);
     baseName[25] = 0;
 
     // RGG 20001025 : add support for Interbase
@@ -3432,36 +3912,43 @@ wxDBMS wxDb::Dbms(void)
 
     if (!wxStricmp(dbInf.dbmsName,wxT("Microsoft SQL Server")))
         return((wxDBMS)(dbmsType = dbmsMS_SQL_SERVER));
-    if (!wxStricmp(dbInf.dbmsName,wxT("MySQL")))
-        return((wxDBMS)(dbmsType = dbmsMY_SQL));
-    if (!wxStricmp(dbInf.dbmsName,wxT("PostgreSQL")))  // v6.5.0
+
+    baseName[10] = 0;
+    if (!wxStricmp(baseName,wxT("PostgreSQL")))  // v6.5.0
         return((wxDBMS)(dbmsType = dbmsPOSTGRES));
 
     baseName[9] = 0;
-    if (!wxStricmp(dbInf.dbmsName,wxT("Pervasive")))
+    if (!wxStricmp(baseName,wxT("Pervasive")))
         return((wxDBMS)(dbmsType = dbmsPERVASIVE_SQL));
 
     baseName[8] = 0;
     if (!wxStricmp(baseName,wxT("Informix")))
         return((wxDBMS)(dbmsType = dbmsINFORMIX));
 
+    if (!wxStricmp(baseName,wxT("Firebird")))
+        return((wxDBMS)(dbmsType = dbmsFIREBIRD));
+
     baseName[6] = 0;
     if (!wxStricmp(baseName,wxT("Oracle")))
         return((wxDBMS)(dbmsType = dbmsORACLE));
-    if (!wxStricmp(dbInf.dbmsName,wxT("ACCESS")))
+    if (!wxStricmp(baseName,wxT("ACCESS")))
         return((wxDBMS)(dbmsType = dbmsACCESS));
-    if (!wxStricmp(dbInf.dbmsName,wxT("MySQL")))
-        return((wxDBMS)(dbmsType = dbmsMY_SQL));
     if (!wxStricmp(baseName,wxT("Sybase")))
       return((wxDBMS)(dbmsType = dbmsSYBASE_ASE));
 
     baseName[5] = 0;
     if (!wxStricmp(baseName,wxT("DBASE")))
         return((wxDBMS)(dbmsType = dbmsDBASE));
+    if (!wxStricmp(baseName,wxT("xBase")))
+        return((wxDBMS)(dbmsType = dbmsXBASE_SEQUITER));
+    if (!wxStricmp(baseName,wxT("MySQL")))
+        return((wxDBMS)(dbmsType = dbmsMY_SQL));
+    if (!wxStricmp(baseName,wxT("MaxDB")))
+        return((wxDBMS)(dbmsType = dbmsMAXDB));
 
     baseName[3] = 0;
     if (!wxStricmp(baseName,wxT("DB2")))
-        return((wxDBMS)(dbmsType = dbmsDBASE));
+        return((wxDBMS)(dbmsType = dbmsDB2));
 
     return((wxDBMS)(dbmsType = dbmsUNIDENTIFIED));
 
@@ -3479,7 +3966,7 @@ bool wxDb::ModifyColumn(const wxString &tableName, const wxString &columnName,
 
     // Must specify a columnLength if modifying a VARCHAR type column
     if (dataType == DB_DATA_TYPE_VARCHAR && !columnLength)
-        return FALSE;
+        return false;
 
     wxString dataTypeName;
     wxString sqlStmt;
@@ -3503,40 +3990,50 @@ bool wxDb::ModifyColumn(const wxString &tableName, const wxString &columnName,
             dataTypeName = typeInfBlob.TypeName;
             break;
         default:
-            return FALSE;
+            return false;
     }
 
     // Set the modify or alter syntax depending on the type of database connected to
     switch (Dbms())
     {
         case dbmsORACLE :
-            alterSlashModify = "MODIFY";
+            alterSlashModify = _T("MODIFY");
             break;
         case dbmsMS_SQL_SERVER :
-            alterSlashModify = "ALTER COLUMN";
+            alterSlashModify = _T("ALTER COLUMN");
             break;
         case dbmsUNIDENTIFIED :
-            return FALSE;
+            return false;
         case dbmsSYBASE_ASA :
         case dbmsSYBASE_ASE :
         case dbmsMY_SQL :
         case dbmsPOSTGRES :
         case dbmsACCESS :
         case dbmsDBASE :
+        case dbmsXBASE_SEQUITER :
         default :
-            alterSlashModify = "MODIFY";
+            alterSlashModify = _T("MODIFY");
             break;
     }
 
     // create the SQL statement
-    sqlStmt.Printf(wxT("ALTER TABLE %s %s %s %s"), tableName.c_str(), alterSlashModify.c_str(),
+    if ( Dbms() == dbmsMY_SQL )
+    {
+        sqlStmt.Printf(wxT("ALTER TABLE %s %s %s %s"), tableName.c_str(), alterSlashModify.c_str(),
+              columnName.c_str(), dataTypeName.c_str());
+    }
+    else
+    {
+        sqlStmt.Printf(wxT("ALTER TABLE \"%s\" \"%s\" \"%s\" %s"), tableName.c_str(), alterSlashModify.c_str(),
               columnName.c_str(), dataTypeName.c_str());
+    }
 
     // For varchars only, append the size of the column
-    if (dataType == DB_DATA_TYPE_VARCHAR)
+    if (dataType == DB_DATA_TYPE_VARCHAR &&
+        (Dbms() != dbmsMY_SQL || dataTypeName != _T("text")))
     {
         wxString s;
-        s.Printf(wxT("(%d)"), columnLength);
+        s.Printf(wxT("(%lu)"), columnLength);
         sqlStmt += s;
     }
 
@@ -3553,7 +4050,7 @@ bool wxDb::ModifyColumn(const wxString &tableName, const wxString &columnName,
 
 
 /********** wxDbGetConnection() **********/
-wxDb WXDLLEXPORT *wxDbGetConnection(wxDbConnectInf *pDbConfig, bool FwdOnlyCursors)
+wxDb WXDLLIMPEXP_ODBC *wxDbGetConnection(wxDbConnectInf *pDbConfig, bool FwdOnlyCursors)
 {
     wxDbList *pList;
 
@@ -3571,17 +4068,42 @@ wxDb WXDLLEXPORT *wxDbGetConnection(wxDbConnectInf *pDbConfig, bool FwdOnlyCurso
         // The database connection must be for the same datasource
         // name and must currently not be in use.
         if (pList->Free &&
-            (pList->PtrDb->FwdOnlyCursors() == FwdOnlyCursors) &&
-            (!wxStrcmp(pDbConfig->GetDsn(), pList->Dsn)))  // Found a free connection
+            (pList->PtrDb->FwdOnlyCursors() == FwdOnlyCursors))
         {
-            pList->Free = FALSE;
-            return(pList->PtrDb);
+            if (pDbConfig->UseConnectionStr())
+            {
+                if (pList->PtrDb->OpenedWithConnectionString() &&
+                     (!wxStrcmp(pDbConfig->GetConnectionStr(), pList->ConnectionStr)))
+                {
+                    // Found a free connection
+                    pList->Free = false;
+                    return(pList->PtrDb);
+                }
+            }
+            else
+            {
+                if (!pList->PtrDb->OpenedWithConnectionString() &&
+                     (!wxStrcmp(pDbConfig->GetDsn(), pList->Dsn)))
+                {
+                    // Found a free connection
+                    pList->Free = false;
+                    return(pList->PtrDb);
+                }
+            }
         }
 
-        if (!wxStrcmp(pDbConfig->GetDsn(), pList->Dsn) &&
-            !wxStrcmp(pDbConfig->GetUserID(), pList->Uid) &&
-            !wxStrcmp(pDbConfig->GetPassword(), pList->AuthStr))
-            matchingDbConnection = pList->PtrDb;
+        if (pDbConfig->UseConnectionStr())
+        {
+            if (!wxStrcmp(pDbConfig->GetConnectionStr(), pList->ConnectionStr))
+                matchingDbConnection = pList->PtrDb;
+        }
+        else
+        {
+            if (!wxStrcmp(pDbConfig->GetDsn(), pList->Dsn) &&
+                !wxStrcmp(pDbConfig->GetUserID(), pList->Uid) &&
+                !wxStrcmp(pDbConfig->GetPassword(), pList->AuthStr))
+                matchingDbConnection = pList->PtrDb;
+        }
     }
 
     // No available connections.  A new connection must be made and
@@ -3603,26 +4125,36 @@ wxDb WXDLLEXPORT *wxDbGetConnection(wxDbConnectInf *pDbConfig, bool FwdOnlyCurso
     }
 
     // Initialize new node in the linked list
-    pList->PtrNext  = 0;
-    pList->Free     = FALSE;
-    pList->Dsn      = pDbConfig->GetDsn();
-    pList->Uid      = pDbConfig->GetUserID();
-    pList->AuthStr  = pDbConfig->GetPassword();
+    pList->PtrNext          = 0;
+    pList->Free             = false;
+    pList->Dsn              = pDbConfig->GetDsn();
+    pList->Uid              = pDbConfig->GetUserID();
+    pList->AuthStr          = pDbConfig->GetPassword();
+    pList->ConnectionStr    = pDbConfig->GetConnectionStr();
 
     pList->PtrDb = new wxDb(pDbConfig->GetHenv(), FwdOnlyCursors);
 
-    bool opened = FALSE;
+    bool opened;
 
     if (!matchingDbConnection)
-        opened = pList->PtrDb->Open(pDbConfig->GetDsn(), pDbConfig->GetUserID(), pDbConfig->GetPassword());
+    {
+        if (pDbConfig->UseConnectionStr())
+        {
+            opened = pList->PtrDb->Open(pDbConfig->GetConnectionStr());
+        }
+        else
+        {
+            opened = pList->PtrDb->Open(pDbConfig->GetDsn(), pDbConfig->GetUserID(), pDbConfig->GetPassword());
+        }
+    }
     else
         opened = pList->PtrDb->Open(matchingDbConnection);
 
     // Connect to the datasource
     if (opened)
     {
-        pList->PtrDb->setCached(TRUE);  // Prevent a user from deleting a cached connection
-        pList->PtrDb->SetSqlLogging(SQLLOGstate,SQLLOGfn,TRUE);
+        pList->PtrDb->setCached(true);  // Prevent a user from deleting a cached connection
+        pList->PtrDb->SetSqlLogging(SQLLOGstate, SQLLOGfn, true);
         return(pList->PtrDb);
     }
     else  // Unable to connect, destroy list item
@@ -3630,11 +4162,12 @@ wxDb WXDLLEXPORT *wxDbGetConnection(wxDbConnectInf *pDbConfig, bool FwdOnlyCurso
         if (pList->PtrPrev)
             pList->PtrPrev->PtrNext = 0;
         else
-            PtrBegDbList = 0;                // Empty list again
-        pList->PtrDb->CommitTrans();    // Commit any open transactions on wxDb object
-        pList->PtrDb->Close();            // Close the wxDb object
-        delete pList->PtrDb;                // Deletes the wxDb object
-        delete pList;                        // Deletes the linked list object
+            PtrBegDbList = 0;        // Empty list again
+
+        pList->PtrDb->CommitTrans(); // Commit any open transactions on wxDb object
+        pList->PtrDb->Close();       // Close the wxDb object
+        delete pList->PtrDb;         // Deletes the wxDb object
+        delete pList;                // Deletes the linked list object
         return(0);
     }
 
@@ -3642,7 +4175,7 @@ wxDb WXDLLEXPORT *wxDbGetConnection(wxDbConnectInf *pDbConfig, bool FwdOnlyCurso
 
 
 /********** wxDbFreeConnection() **********/
-bool WXDLLEXPORT wxDbFreeConnection(wxDb *pDb)
+bool WXDLLIMPEXP_ODBC wxDbFreeConnection(wxDb *pDb)
 {
     wxDbList *pList;
 
@@ -3650,17 +4183,17 @@ bool WXDLLEXPORT wxDbFreeConnection(wxDb *pDb)
     for (pList = PtrBegDbList; pList; pList = pList->PtrNext)
     {
         if (pList->PtrDb == pDb)  // Found it, now free it!!!
-            return (pList->Free = TRUE);
+            return (pList->Free = true);
     }
 
     // Never found the database object, return failure
-    return(FALSE);
+    return false;
 
 }  // wxDbFreeConnection()
 
 
 /********** wxDbCloseConnections() **********/
-void WXDLLEXPORT wxDbCloseConnections(void)
+void WXDLLIMPEXP_ODBC wxDbCloseConnections(void)
 {
     wxDbList *pList, *pNext;
 
@@ -3670,7 +4203,7 @@ void WXDLLEXPORT wxDbCloseConnections(void)
         pNext = pList->PtrNext;       // Save the pointer to next
         pList->PtrDb->CommitTrans();  // Commit any open transactions on wxDb object
         pList->PtrDb->Close();        // Close the wxDb object
-        pList->PtrDb->setCached(FALSE);  // Allows deletion of the wxDb instance
+        pList->PtrDb->setCached(false);  // Allows deletion of the wxDb instance
         delete pList->PtrDb;          // Deletes the wxDb object
         delete pList;                 // Deletes the linked list object
     }
@@ -3682,7 +4215,7 @@ void WXDLLEXPORT wxDbCloseConnections(void)
 
 
 /********** wxDbConnectionsInUse() **********/
-int WXDLLEXPORT wxDbConnectionsInUse(void)
+int WXDLLIMPEXP_ODBC wxDbConnectionsInUse(void)
 {
     wxDbList *pList;
     int cnt = 0;
@@ -3690,7 +4223,7 @@ int WXDLLEXPORT wxDbConnectionsInUse(void)
     // Scan the linked list counting db connections that are currently in use
     for (pList = PtrBegDbList; pList; pList = pList->PtrNext)
     {
-        if (pList->Free == FALSE)
+        if (pList->Free == false)
             cnt++;
     }
 
@@ -3702,8 +4235,10 @@ int WXDLLEXPORT wxDbConnectionsInUse(void)
 
 /********** wxDbLogExtendedErrorMsg() **********/
 // DEBUG ONLY function
-const wxChar WXDLLEXPORT *wxDbLogExtendedErrorMsg(const wxChar *userText, wxDb *pDb,
-                             char *ErrFile, int ErrLine)
+const wxChar WXDLLIMPEXP_ODBC *wxDbLogExtendedErrorMsg(const wxChar *userText,
+                                                  wxDb *pDb,
+                                                  const wxChar *ErrFile,
+                                                  int ErrLine)
 {
     static wxString msg;
     msg = userText;
@@ -3730,11 +4265,11 @@ const wxChar WXDLLEXPORT *wxDbLogExtendedErrorMsg(const wxChar *userText, wxDb *
         if (pDb->errorList[i])
         {
             msg.Append(pDb->errorList[i]);
-            if (wxStrcmp(pDb->errorList[i],wxT("")) != 0)
+            if (wxStrcmp(pDb->errorList[i], wxEmptyString) != 0)
                 msg.Append(wxT("\n"));
             // Clear the errmsg buffer so the next error will not
             // end up showing the previous error that have occurred
-            wxStrcpy(pDb->errorList[i],wxT(""));
+            wxStrcpy(pDb->errorList[i], wxEmptyString);
         }
     }
     msg += wxT("\n");
@@ -3748,20 +4283,20 @@ const wxChar WXDLLEXPORT *wxDbLogExtendedErrorMsg(const wxChar *userText, wxDb *
 /********** wxDbSqlLog() **********/
 bool wxDbSqlLog(wxDbSqlLogState state, const wxChar *filename)
 {
-    bool append = FALSE;
+    bool append = false;
     wxDbList *pList;
 
     for (pList = PtrBegDbList; pList; pList = pList->PtrNext)
     {
         if (!pList->PtrDb->SetSqlLogging(state,filename,append))
-            return(FALSE);
-        append = TRUE;
+            return false;
+        append = true;
     }
 
     SQLLOGstate = state;
     SQLLOGfn = filename;
 
-    return(TRUE);
+    return true;
 
 }  // wxDbSqlLog()
 
@@ -3794,12 +4329,12 @@ int wxDbCreateDataSource(const wxString &driverName, const wxString &dsn, const
     // embedded nulls in strings
     setupStr.Printf(wxT("DSN=%s%cDescription=%s%cDefaultDir=%s%c"),dsn,2,description,2,defDir,2);
 
-    // Replace the separator from above with the '\0' seperator needed
+    // Replace the separator from above with the '\0' separator needed
     // by the SQLConfigDataSource() function
     int k;
     do
     {
-        k = setupStr.Find((wxChar)2,TRUE);
+        k = setupStr.Find((wxChar)2,true);
         if (k != wxNOT_FOUND)
             setupStr[(UINT)k] = wxT('\0');
     }
@@ -3850,20 +4385,22 @@ int wxDbCreateDataSource(const wxString &driverName, const wxString &dsn, const
 
 
 /********** wxDbGetDataSource() **********/
-bool wxDbGetDataSource(HENV henv, wxChar *Dsn, SWORD DsnMax, wxChar *DsDesc,
-                       SWORD DsDescMax, UWORD direction)
+bool wxDbGetDataSource(HENV henv, wxChar *Dsn, SWORD DsnMaxLength, wxChar *DsDesc,
+                       SWORD DsDescMaxLength, UWORD direction)
 /*
  * Dsn and DsDesc will contain the data source name and data source
  * description upon return
  */
 {
     SWORD cb1,cb2;
+    SWORD lengthDsn = (SWORD)(DsnMaxLength*sizeof(wxChar));
+    SWORD lengthDsDesc = (SWORD)(DsDescMaxLength*sizeof(wxChar));
 
-    if (SQLDataSources(henv, direction, (UCHAR FAR *) Dsn, DsnMax, &cb1,
-                             (UCHAR FAR *) DsDesc, DsDescMax, &cb2) == SQL_SUCCESS)
-        return(TRUE);
+    if (SQLDataSources(henv, direction, (SQLTCHAR FAR *) Dsn, lengthDsn, &cb1,
+                       (SQLTCHAR FAR *) DsDesc, lengthDsDesc, &cb2) == SQL_SUCCESS)
+        return true;
     else
-        return(FALSE);
+        return false;
 
 }  // wxDbGetDataSource()
 
@@ -3874,7 +4411,7 @@ bool wxDbGetDataSource(HENV henv, wxChar *Dsn, SWORD DsnMax, wxChar *DsDesc,
  ********************************************************************
  *
  * The following functions are all DEPRECATED and are included for
- * backward compatability reasons only
+ * backward compatibility reasons only
  *
  ********************************************************************
  ********************************************************************/
@@ -3889,22 +4426,22 @@ bool GetDataSource(HENV henv, char *Dsn, SWORD DsnMax, char *DsDesc, SWORD DsDes
     return wxDbGetDataSource(henv, Dsn, DsnMax, DsDesc, DsDescMax, direction);
 }
 /***** DEPRECATED: use wxDbGetConnection() *****/
-wxDb WXDLLEXPORT *GetDbConnection(DbStuff *pDbStuff, bool FwdOnlyCursors)
+wxDb WXDLLIMPEXP_ODBC *GetDbConnection(DbStuff *pDbStuff, bool FwdOnlyCursors)
 {
     return wxDbGetConnection((wxDbConnectInf *)pDbStuff, FwdOnlyCursors);
 }
 /***** DEPRECATED: use wxDbFreeConnection() *****/
-bool WXDLLEXPORT FreeDbConnection(wxDb *pDb)
+bool WXDLLIMPEXP_ODBC FreeDbConnection(wxDb *pDb)
 {
     return wxDbFreeConnection(pDb);
 }
 /***** DEPRECATED: use wxDbCloseConnections() *****/
-void WXDLLEXPORT CloseDbConnections(void)
+void WXDLLIMPEXP_ODBC CloseDbConnections(void)
 {
     wxDbCloseConnections();
 }
 /***** DEPRECATED: use wxDbConnectionsInUse() *****/
-int WXDLLEXPORT NumberDbConnectionsInUse(void)
+int WXDLLIMPEXP_ODBC NumberDbConnectionsInUse(void)
 {
     return wxDbConnectionsInUse();
 }