wxMSWUniv wxWindowMSW vs. wxWindow fix.

[wxWidgets.git] / include / wx / db.h

diff --git a/include/wx/db.h b/include/wx/db.h
index c0763f6fd506e8d1c0e3c32a9ecd904b6af9a45a..070fdce3303cf698c6c7bada98a82e8d6845dab4 100644 (file)
--- a/include/wx/db.h
+++ b/include/wx/db.h
@@ -1,10 +1,12 @@
 ///////////////////////////////////////////////////////////////////////////////
 ///////////////////////////////////////////////////////////////////////////////

-// Name:        db.h
+// Name:        wx/db.h

 // Purpose:     Header file wxDb class.  The wxDb class represents a connection
 //              to an ODBC data source.  The wxDb class allows operations on the data
 //              source such as opening and closing the data source.
 // Author:      Doug Card
 // Modified by: George Tasker
 // Purpose:     Header file wxDb class.  The wxDb class represents a connection
 //              to an ODBC data source.  The wxDb class allows operations on the data
 //              source such as opening and closing the data source.
 // Author:      Doug Card
 // Modified by: George Tasker

+//              Bart Jourquin
+//              Mark Johnson, wxWindows@mj10777.de

 // Mods:        Dec, 1998:
 //                -Added support for SQL statement logging and database cataloging
 //                     April, 1999
 // Mods:        Dec, 1998:
 //                -Added support for SQL statement logging and database cataloging
 //                     April, 1999


@@ -17,98 +19,117 @@
 // Created:     9.96
 // RCS-ID:      $Id$
 // Copyright:   (c) 1996 Remstar International, Inc.
 // 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
-*/
-
-#ifndef DB_DOT_H
-#define DB_DOT_H
+#ifndef _WX_DB_H_
+#define _WX_DB_H_

 
 
 
 

-// BJO 20000503: introduce new GetColumns members which are more database independant and 
+// BJO 20000503: introduce new GetColumns members which are more database independant and

 //               return columns in the order they were created
 #define OLD_GETCOLUMNS 1
 //               return columns in the order they were created
 #define OLD_GETCOLUMNS 1

+#define EXPERIMENTAL_WXDB_FUNCTIONS 1

 
 

-
-// Use this line for wxWindows v1.x
-//#include "wx_ver.h"
-// Use this line for wxWindows v2.x

 #include "wx/version.h"
 
 #include "wx/version.h"
 

-#if wxMAJOR_VERSION == 2
-    #ifdef __GNUG__
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)

     #pragma interface "db.h"
     #pragma interface "db.h"

-    #endif

 #endif
 
 #include "wx/setup.h"
 
 #endif
 
 #include "wx/setup.h"
 

-#if wxMAJOR_VERSION == 2
-    extern "C" {
-    #include "wx/isql.h"
-    #include "wx/isqlext.h"
-// If you use the wxCreateDataSource() function with MSW/VC6,
-// you cannot use the iODBC headers, you must use the VC headers,
-// plus the odbcinst.h header
-    //#include "sql.h"
-    //#include "sqlext.h"
-    //#include "odbcinst.h"
-    }
-#else  // version == 1
+#include "wx/defs.h"
+#include "wx/string.h"
+
+#if defined(__VISUALC__)
+    // we need to include standard Windows headers but we can't include
+    // <windows.h> directly when using MFC because it includes it itself in a
+    // different manner
+    #if wxUSE_MFC
+        #include <afxwin.h>
+    #else // !wxUSE_MFC
+        #ifndef STRICT
+            #define STRICT 1
+        #endif
+
+        #include <windows.h>
+        #include "wx/msw/winundef.h"
+    #endif // wxUSE_MFC/!wxUSE_MFC
+
+    // If you use the wxDbCreateDataSource() function with MSW/VC6,
+    // you cannot use the iODBC headers, you must use the VC headers,
+    // plus the odbcinst.h header - gt Nov 2 2000
+    //
+    // Must add "odbccp32.lib" in \wx2\wxWidgets\src\makevc.env to the WINLIBS= line
+    //
+    #include "sql.h"
+    #include "sqlext.h"
+    #include "odbcinst.h"
+#else
+    #if defined(__WINDOWS__) && ( defined(HAVE_W32API_H) || defined(__BORLANDC__) )
+        #include <windows.h>
+        #include "wx/msw/winundef.h"
+    #endif

     extern "C" {
     extern "C" {

-    #include "iodbc.h"
-    #include "isqlext.h"
+    #if defined(wxUSE_BUILTIN_IODBC) && wxUSE_BUILTIN_IODBC
+        // Use the ones from the library
+        #include "wx/isql.h"
+        #include "wx/isqlext.h"
+    #else
+        #include <sql.h>
+        #include <sqlext.h>
+    #endif

     }
 #endif
 
     }
 #endif
 

+#if wxUSE_UNICODE
+#define SQL_C_WXCHAR SQL_C_WCHAR
+#else
+#define SQL_C_WXCHAR SQL_C_CHAR
+#endif
+

 typedef float SFLOAT;
 typedef double SDOUBLE;
 typedef unsigned int UINT;
 #define ULONG UDWORD
 
 typedef float SFLOAT;
 typedef double SDOUBLE;
 typedef unsigned int UINT;
 #define ULONG UDWORD
 

+// Not available in iODBC
+#ifndef __WXMSW__
+typedef UCHAR SQLTCHAR;
+#endif
+

 #ifndef wxODBC_FWD_ONLY_CURSORS
 #define wxODBC_FWD_ONLY_CURSORS 1
 #endif
 
 enum enumDummy {enumDum1};
 
 #ifndef wxODBC_FWD_ONLY_CURSORS
 #define wxODBC_FWD_ONLY_CURSORS 1
 #endif
 
 enum enumDummy {enumDum1};
 

-#define SQL_C_BOOLEAN(datatype) (sizeof(datatype) == 1 ? SQL_C_UTINYINT : (sizeof(datatype) == 2 ? SQL_C_USHORT : SQL_C_ULONG))
-//    #define SQL_C_BOOLEAN (sizeof(Bool) == 2 ? SQL_C_USHORT : SQL_C_ULONG)
-
-#define SQL_C_ENUM (sizeof(enumDummy) == 2 ? SQL_C_USHORT : SQL_C_ULONG)
+#ifndef SQL_C_BOOLEAN
+    #define SQL_C_BOOLEAN(datatype) (sizeof(datatype) == 1 ? SQL_C_UTINYINT : (sizeof(datatype) == 2 ? SQL_C_USHORT : SQL_C_ULONG))
+#endif

 
 

-#ifndef TRUE
-#define TRUE 1
+#ifndef SQL_C_ENUM
+    #define SQL_C_ENUM (sizeof(enumDummy) == 2 ? SQL_C_USHORT : SQL_C_ULONG)

 #endif
 
 #endif
 

-#ifndef FALSE
-#define FALSE 0
+// NOTE: If SQL_C_BLOB is defined, and it is not SQL_C_BINARY, iODBC 2.x
+//       may not function correctly.  Likely best to use SQL_C_BINARY direct
+#ifndef SQL_C_BLOB
+    #ifdef SQL_C_BINARY
+        #define SQL_C_BLOB SQL_C_BINARY
+    #endif

 #endif
 
 const int wxDB_PATH_MAX                 = 254;
 
 #endif
 
 const int wxDB_PATH_MAX                 = 254;
 

-extern char const *SQL_LOG_FILENAME;
-extern char const *SQL_CATALOG_FILENAME;
-
+WXDLLIMPEXP_DATA_ODBC(extern wxChar const *) SQL_LOG_FILENAME;
+WXDLLIMPEXP_DATA_ODBC(extern wxChar const *) SQL_CATALOG_FILENAME;

 
 // Database Globals
 const int DB_TYPE_NAME_LEN            = 40;
 
 // Database Globals
 const int DB_TYPE_NAME_LEN            = 40;

-const int DB_MAX_STATEMENT_LEN        = 2048;
-const int DB_MAX_WHERE_CLAUSE_LEN     = 1024;
+const int DB_MAX_STATEMENT_LEN        = 4096;
+const int DB_MAX_WHERE_CLAUSE_LEN     = 2048;

 const int DB_MAX_ERROR_MSG_LEN        = 512;
 const int DB_MAX_ERROR_HISTORY        = 5;
 const int DB_MAX_TABLE_NAME_LEN       = 128;
 const int DB_MAX_ERROR_MSG_LEN        = 512;
 const int DB_MAX_ERROR_HISTORY        = 5;
 const int DB_MAX_TABLE_NAME_LEN       = 128;


@@ -118,6 +139,7 @@ const int DB_DATA_TYPE_VARCHAR        = 1;
 const int DB_DATA_TYPE_INTEGER        = 2;
 const int DB_DATA_TYPE_FLOAT          = 3;
 const int DB_DATA_TYPE_DATE           = 4;
 const int DB_DATA_TYPE_INTEGER        = 2;
 const int DB_DATA_TYPE_FLOAT          = 3;
 const int DB_DATA_TYPE_DATE           = 4;

+const int DB_DATA_TYPE_BLOB           = 5;

 
 const int DB_SELECT_KEYFIELDS         = 1;
 const int DB_SELECT_WHERE             = 2;
 
 const int DB_SELECT_KEYFIELDS         = 1;
 const int DB_SELECT_WHERE             = 2;


@@ -237,95 +259,179 @@ enum wxODBC_ERRORS
     DB_ERR_TIMEOUT_EXPIRED                             // SqlState = 'S1T00'
 };
 
     DB_ERR_TIMEOUT_EXPIRED                             // SqlState = 'S1T00'
 };
 

+#ifndef MAXNAME
+    #define MAXNAME         31
+#endif
+
+#ifndef SQL_MAX_AUTHSTR_LEN
+    // There does not seem to be a standard for this, so I am
+    // defaulting to the value that MS uses
+    #define SQL_MAX_AUTHSTR_LEN MAXNAME
+#endif
+
+#ifndef SQL_MAX_CONNECTSTR_LEN
+    // There does not seem to be a standard for this, so I am
+    // defaulting to the value that MS recommends
+    #define SQL_MAX_CONNECTSTR_LEN 1024
+#endif
+

 
 

-struct wxDbConnectInf
+class WXDLLIMPEXP_ODBC wxDbConnectInf

 {
 {

-    HENV Henv;
-    char Dsn[SQL_MAX_DSN_LENGTH+1];                    // Data Source Name
-    char Uid[20+1];                                    // User ID
-    char AuthStr[20+1];                                // Authorization string (password)
+    private:
+        bool freeHenvOnDestroy;
+        bool useConnectionStr;

 
 

-    char description[SQL_MAX_DSN_LENGTH+1];            // Not sure what the max length is
-    char fileType[SQL_MAX_DSN_LENGTH+1];               // Not sure what the max length is
+    public:
+        HENV Henv;
+        wxChar Dsn[SQL_MAX_DSN_LENGTH+1];                  // Data Source Name
+        wxChar Uid[SQL_MAX_USER_NAME_LEN+1];               // User ID
+        wxChar AuthStr[SQL_MAX_AUTHSTR_LEN+1];             // Authorization string (password)
+        wxChar ConnectionStr[SQL_MAX_CONNECTSTR_LEN+1];    // Connection string (password)

 
 

-    // Optionals needed for some databases like dBase
-    char defaultDir[wxDB_PATH_MAX];                      // Directory that db file resides in
-};
+        wxString Description;                              // Not sure what the max length is
+        wxString FileType;                                 // Not sure what the max length is
+
+        // Optionals needed for some databases like dBase
+        wxString DefaultDir;                               // Directory that db file resides in
+
+    public:
+
+        wxDbConnectInf();
+        wxDbConnectInf(HENV henv, const wxString &dsn, const wxString &userID=wxEmptyString,
+                       const wxString &password=wxEmptyString, const wxString &defaultDir=wxEmptyString,
+                       const wxString &description=wxEmptyString, const wxString &fileType=wxEmptyString);
+
+        ~wxDbConnectInf();
+
+        bool             Initialize();
+
+        bool             AllocHenv();
+        void             FreeHenv();
+
+        // Accessors
+        const HENV       &GetHenv()          { return Henv; };

 
 

-struct wxDbSqlTypeInfo
+        const wxChar    *GetDsn()           { return Dsn; };
+
+        const wxChar    *GetUid()           { return Uid; };
+        const wxChar    *GetUserID()        { return Uid; };
+
+        const wxChar    *GetAuthStr()       { return AuthStr; };
+        const wxChar    *GetPassword()      { return AuthStr; };
+
+        const wxChar    *GetConnectionStr() { return ConnectionStr; };
+        bool             UseConnectionStr() { return useConnectionStr; };
+
+        const wxChar    *GetDescription()   { return Description; };
+        const wxChar    *GetFileType()      { return FileType; };
+        const wxChar    *GetDefaultDir()    { return DefaultDir; };
+
+        void             SetHenv(const HENV henv)               { Henv = henv; };
+
+        void             SetDsn(const wxString &dsn);
+
+        void             SetUserID(const wxString &userID);
+        void             SetUid(const wxString &uid)            { SetUserID(uid); };
+
+        void             SetPassword(const wxString &password);
+        void             SetAuthStr(const wxString &authstr)    { SetPassword(authstr); };
+
+        void             SetConnectionStr(const wxString &connectStr);
+
+        void             SetDescription(const wxString &desc)   { Description   = desc;     };
+        void             SetFileType(const wxString &fileType)  { FileType      = fileType; };
+        void             SetDefaultDir(const wxString &defDir)  { DefaultDir    = defDir;   };
+};  // class wxDbConnectInf
+
+
+struct WXDLLIMPEXP_ODBC wxDbSqlTypeInfo

 {
 {

-    char    TypeName[DB_TYPE_NAME_LEN];
-    int     FsqlType;
-    long    Precision;
-    short   CaseSensitive;
-//    short MinimumScale;
-    short   MaximumScale;
+    wxString    TypeName;
+    SWORD       FsqlType;
+    long        Precision;
+    short       CaseSensitive;
+    short       MaximumScale;

 };
 
 
 };
 
 

-class WXDLLEXPORT wxDbColFor
+class WXDLLIMPEXP_ODBC wxDbColFor

 {
 public:
 {
 public:

-    wxString       s_Field;             // Formated String for Output
-    wxString       s_Format[7];         // Formated Objects - TIMESTAMP has the biggest (7)
-    wxString       s_Menge[7];          // Formated Objects - amount of things that can be formatted
-    int            i_Menge[7];          // Formated Objects - TT MM YYYY HH MM SS m
-    int            i_Nation;            // 0 = timestamp , 1=EU, 2=UK, 3=International, 4=US
-    int            i_dbDataType;        // conversion of the 'sqlDataType' to the generic data type used by these classes
+    wxString       s_Field;              // Formated String for Output
+    wxString       s_Format[7];          // Formated Objects - TIMESTAMP has the biggest (7)
+    wxString       s_Amount[7];          // Formated Objects - amount of things that can be formatted
+    int            i_Amount[7];          // Formated Objects - TT MM YYYY HH MM SS m
+    int            i_Nation;             // 0 = timestamp , 1=EU, 2=UK, 3=International, 4=US
+    int            i_dbDataType;         // conversion of the 'sqlDataType' to the generic data type used by these classes

     SWORD          i_sqlDataType;
 
     wxDbColFor();
     SWORD          i_sqlDataType;
 
     wxDbColFor();

-    ~wxDbColFor();
+    ~wxDbColFor(){}

 
 

-    int            Format(int Nation, int dbDataType, SWORD sqlDataType, short columnSize, short decimalDigits);
+    void           Initialize();
+    int            Format(int Nation, int dbDataType, SWORD sqlDataType, short columnLength, short decimalDigits);

 };
 
 
 };
 
 

-class WXDLLEXPORT wxDbColInf
+class WXDLLIMPEXP_ODBC wxDbColInf

 {
 public:
 {
 public:

-    char         catalog[128+1];
-    char         schema[128+1];
-    char         tableName[DB_MAX_TABLE_NAME_LEN+1];
-    char         colName[DB_MAX_COLUMN_NAME_LEN+1];
+    wxChar       catalog[128+1];
+    wxChar       schema[128+1];
+    wxChar       tableName[DB_MAX_TABLE_NAME_LEN+1];
+    wxChar       colName[DB_MAX_COLUMN_NAME_LEN+1];

     SWORD        sqlDataType;
     SWORD        sqlDataType;

-    char         typeName[128+1];
-    SWORD        columnSize;
-    SWORD        bufferLength;
+    wxChar       typeName[128+1];
+    SWORD        columnLength;
+    SWORD        bufferSize;

     short        decimalDigits;
     short        numPrecRadix;
     short        nullable;
     short        decimalDigits;
     short        numPrecRadix;
     short        nullable;

-    char         remarks[254+1];
+    wxChar       remarks[254+1];

     int          dbDataType;  // conversion of the 'sqlDataType' to the generic data type used by these classes
  // mj10777.19991224 : new
     int          PkCol;       // Primary key column       0=No; 1= First Key, 2 = Second Key etc.
     int          dbDataType;  // conversion of the 'sqlDataType' to the generic data type used by these classes
  // mj10777.19991224 : new
     int          PkCol;       // Primary key column       0=No; 1= First Key, 2 = Second Key etc.

-    char         PkTableName[DB_MAX_TABLE_NAME_LEN+1]; // Tables that use this PKey as a FKey
+    wxChar       PkTableName[DB_MAX_TABLE_NAME_LEN+1]; // Tables that use this PKey as a FKey

     int          FkCol;       // Foreign key column       0=No; 1= First Key, 2 = Second Key etc.
     int          FkCol;       // Foreign key column       0=No; 1= First Key, 2 = Second Key etc.

-    char         FkTableName[DB_MAX_TABLE_NAME_LEN+1]; // Foreign key table name
+    wxChar       FkTableName[DB_MAX_TABLE_NAME_LEN+1]; // Foreign key table name

     wxDbColFor  *pColFor;                              // How should this columns be formatted
     wxDbColFor  *pColFor;                              // How should this columns be formatted

-};

 
 

+    wxDbColInf();
+    ~wxDbColInf();

 
 

+    bool Initialize();
+};

 
 
 
 

-class WXDLLEXPORT wxDbTableInf        // Description of a Table
+class WXDLLIMPEXP_ODBC wxDbTableInf        // Description of a Table

 {
 public:
 {
 public:

-    char        tableName[DB_MAX_TABLE_NAME_LEN+1];
-    char        tableType[254+1];           // "TABLE" or "SYSTEM TABLE" etc.
-    char        tableRemarks[254+1];
-    int         numCols;                    // How many Columns does this Table have: GetColumnCount(..);
+    wxChar      tableName[DB_MAX_TABLE_NAME_LEN+1];
+    wxChar      tableType[254+1];           // "TABLE" or "SYSTEM TABLE" etc.
+    wxChar      tableRemarks[254+1];
+    UWORD       numCols;                    // How many Columns does this Table have: GetColumnCount(..);

     wxDbColInf *pColInf;                    // pColInf = NULL ; User can later call GetColumns(..);
     wxDbColInf *pColInf;                    // pColInf = NULL ; User can later call GetColumns(..);

+
+    wxDbTableInf();
+    ~wxDbTableInf();
+
+    bool             Initialize();

 };
 
 
 };
 
 

-class WXDLLEXPORT wxDbInf     // Description of a Database
+class WXDLLIMPEXP_ODBC wxDbInf     // Description of a Database

 {
 public:
 {
 public:

-    char          catalog[128+1];
-    char          schema[128+1];
+    wxChar        catalog[128+1];
+    wxChar        schema[128+1];

     int           numTables;           // How many tables does this database have
     wxDbTableInf *pTableInf;           // pTableInf = new wxDbTableInf[numTables];
     int           numTables;           // How many tables does this database have
     wxDbTableInf *pTableInf;           // pTableInf = new wxDbTableInf[numTables];

+
+    wxDbInf();
+    ~wxDbInf();
+
+    bool          Initialize();

 };
 
 
 };
 
 


@@ -350,7 +456,12 @@ enum wxDBMS
     dbmsACCESS,
     dbmsDBASE,
     dbmsINFORMIX,
     dbmsACCESS,
     dbmsDBASE,
     dbmsINFORMIX,

-    dbmsVIRTUOSO
+    dbmsVIRTUOSO,
+    dbmsDB2,
+    dbmsINTERBASE,
+    dbmsPERVASIVE_SQL,
+    dbmsXBASE_SEQUITER,
+    dbmsFIREBIRD

 };
 
 
 };
 
 


@@ -361,25 +472,37 @@ enum wxDBMS
 // why the connection failed.  Note: as each wxDb object is closed, it
 // will overwrite the errors of the previously destroyed wxDb object in
 // this variable.
 // why the connection failed.  Note: as each wxDb object is closed, it
 // will overwrite the errors of the previously destroyed wxDb object in
 // this variable.

-extern char DBerrorList[DB_MAX_ERROR_HISTORY][DB_MAX_ERROR_MSG_LEN];

 
 

+WXDLLIMPEXP_DATA_ODBC(extern wxChar)
+    DBerrorList[DB_MAX_ERROR_HISTORY][DB_MAX_ERROR_MSG_LEN];

 
 

-class WXDLLEXPORT wxDb
+
+class WXDLLIMPEXP_ODBC wxDb

 {
 private:
     bool             dbIsOpen;
 {
 private:
     bool             dbIsOpen;

-    char            *dsn;             // Data source name
-    char            *uid;             // User ID
-    char            *authStr;         // Authorization string (password)
+    bool             dbIsCached;      // Was connection created by caching functions
+    bool             dbOpenedWithConnectionString;  // Was the database connection opened with a connection string
+    wxString         dsn;             // Data source name
+    wxString         uid;             // User ID
+    wxString         authStr;         // Authorization string (password)
+    wxString         inConnectionStr; // Connection string used to connect to the database
+    wxString         outConnectionStr;// Connection string returned by the database when a connection is successfully opened

     FILE            *fpSqlLog;        // Sql Log file pointer
     wxDbSqlLogState  sqlLogState;     // On or Off
     bool             fwdOnlyCursors;
     FILE            *fpSqlLog;        // Sql Log file pointer
     wxDbSqlLogState  sqlLogState;     // On or Off
     bool             fwdOnlyCursors;

+    wxDBMS           dbmsType;        // Type of datasource - i.e. Oracle, dBase, SQLServer, etc

 
     // Private member functions
 
     // Private member functions

-    bool             getDbInfo(void);
+    bool             getDbInfo(bool failOnDataTypeUnsupported=true);

     bool             getDataTypeInfo(SWORD fSqlType, wxDbSqlTypeInfo &structSQLTypeInfo);
     bool             setConnectionOptions(void);
     bool             getDataTypeInfo(SWORD fSqlType, wxDbSqlTypeInfo &structSQLTypeInfo);
     bool             setConnectionOptions(void);

-    void             logError(const char *errMsg, const char *SQLState);
+    void             logError(const wxString &errMsg, const wxString &SQLState);
+    const wxChar    *convertUserID(const wxChar *userID, wxString &UserID);
+    bool             determineDataTypes(bool failOnDataTypeUnsupported);
+    void             initialize();
+    bool             open(bool failOnDataTypeUnsupported=true);
+

 #if !wxODBC_BACKWARD_COMPATABILITY
     // ODBC handles
     HENV  henv;        // ODBC Environment handle
 #if !wxODBC_BACKWARD_COMPATABILITY
     // ODBC handles
     HENV  henv;        // ODBC Environment handle


@@ -393,7 +516,7 @@ private:
     unsigned int nTables;
 
     // Information about logical data types VARCHAR, INTEGER, FLOAT and DATE.
     unsigned int nTables;
 
     // Information about logical data types VARCHAR, INTEGER, FLOAT and DATE.

-        //
+     //

     // This information is obtained from the ODBC driver by use of the
     // SQLGetTypeInfo() function.  The key piece of information is the
     // type name the data source uses for each logical data type.
     // This information is obtained from the ODBC driver by use of the
     // SQLGetTypeInfo() function.  The key piece of information is the
     // type name the data source uses for each logical data type.


@@ -402,9 +525,17 @@ private:
     wxDbSqlTypeInfo typeInfInteger;
     wxDbSqlTypeInfo typeInfFloat;
     wxDbSqlTypeInfo typeInfDate;
     wxDbSqlTypeInfo typeInfInteger;
     wxDbSqlTypeInfo typeInfFloat;
     wxDbSqlTypeInfo typeInfDate;

+    wxDbSqlTypeInfo typeInfBlob;

 #endif
 
 public:
 #endif
 
 public:

+
+    void             setCached(bool cached)  { dbIsCached = cached; };  // This function must only be called by wxDbGetConnection() and wxDbCloseConnections!!!
+    bool             IsCached() { return dbIsCached; };
+
+    bool             GetDataTypeInfo(SWORD fSqlType, wxDbSqlTypeInfo &structSQLTypeInfo)
+                            { return getDataTypeInfo(fSqlType, structSQLTypeInfo); }
+

 #if wxODBC_BACKWARD_COMPATABILITY
     // ODBC handles
     HENV  henv;        // ODBC Environment handle
 #if wxODBC_BACKWARD_COMPATABILITY
     // ODBC handles
     HENV  henv;        // ODBC Environment handle


@@ -422,16 +553,17 @@ public:
     // datasource when the datasource is first opened.
     struct
     {
     // datasource when the datasource is first opened.
     struct
     {

-        char   dbmsName[40];                             // Name of the dbms product
-        char   dbmsVer[64];                              // Version # of the dbms product
-        char   driverName[40];                           // Driver name
-        char   odbcVer[60];                              // ODBC version of the driver
-        char   drvMgrOdbcVer[60];                        // ODBC version of the driver manager
-        char   driverVer[60];                            // Driver version
-        char   serverName[80];                           // Server Name, typically a connect string
-        char   databaseName[128];                        // Database filename
-        char   outerJoins[2];                            // Indicates whether the data source supports outer joins
-        char   procedureSupport[2];                      // Indicates whether the data source supports stored procedures
+        wxChar dbmsName[40];                             // Name of the dbms product
+        wxChar dbmsVer[64];                              // Version # of the dbms product
+        wxChar driverName[40];                           // Driver name
+        wxChar odbcVer[60];                              // ODBC version of the driver
+        wxChar drvMgrOdbcVer[60];                        // ODBC version of the driver manager
+        wxChar driverVer[60];                            // Driver version
+        wxChar serverName[80];                           // Server Name, typically a connect string
+        wxChar databaseName[128];                        // Database filename
+        wxChar outerJoins[2];                            // Indicates whether the data source supports outer joins
+        wxChar procedureSupport[2];                      // Indicates whether the data source supports stored procedures
+        wxChar accessibleTables[2];                      // Indicates whether the data source only reports accessible tables in SQLTables.

         UWORD  maxConnections;                           // Maximum # of connections the data source supports
         UWORD  maxStmts;                                 // Maximum # of HSTMTs per HDBC
         UWORD  apiConfLvl;                               // ODBC API conformance level
         UWORD  maxConnections;                           // Maximum # of connections the data source supports
         UWORD  maxStmts;                                 // Maximum # of HSTMTs per HDBC
         UWORD  apiConfLvl;                               // ODBC API conformance level


@@ -440,7 +572,7 @@ public:
         UWORD  cursorCommitBehavior;                     // Indicates how cursors are affected by a db commit
         UWORD  cursorRollbackBehavior;                   // Indicates how cursors are affected by a db rollback
         UWORD  supportNotNullClause;                     // Indicates if data source supports NOT NULL clause
         UWORD  cursorCommitBehavior;                     // Indicates how cursors are affected by a db commit
         UWORD  cursorRollbackBehavior;                   // Indicates how cursors are affected by a db rollback
         UWORD  supportNotNullClause;                     // Indicates if data source supports NOT NULL clause

-        char   supportIEF[2];                            // Integrity Enhancement Facility (Referential Integrity)
+        wxChar supportIEF[2];                            // Integrity Enhancement Facility (Referential Integrity)

         UDWORD txnIsolation;                             // Default transaction isolation level supported by the driver
         UDWORD txnIsolationOptions;                      // Transaction isolation level options available
         UDWORD fetchDirections;                          // Fetch directions supported
         UDWORD txnIsolation;                             // Default transaction isolation level supported by the driver
         UDWORD txnIsolationOptions;                      // Transaction isolation level options available
         UDWORD fetchDirections;                          // Fetch directions supported


@@ -464,7 +596,7 @@ public:
 
 #if wxODBC_BACKWARD_COMPATABILITY
     // Information about logical data types VARCHAR, INTEGER, FLOAT and DATE.
 
 #if wxODBC_BACKWARD_COMPATABILITY
     // Information about logical data types VARCHAR, INTEGER, FLOAT and DATE.

-        //
+     //

     // This information is obtained from the ODBC driver by use of the
     // SQLGetTypeInfo() function.  The key piece of information is the
     // type name the data source uses for each logical data type.
     // This information is obtained from the ODBC driver by use of the
     // SQLGetTypeInfo() function.  The key piece of information is the
     // type name the data source uses for each logical data type.


@@ -473,52 +605,86 @@ public:
     wxDbSqlTypeInfo typeInfInteger;
     wxDbSqlTypeInfo typeInfFloat;
     wxDbSqlTypeInfo typeInfDate;
     wxDbSqlTypeInfo typeInfInteger;
     wxDbSqlTypeInfo typeInfFloat;
     wxDbSqlTypeInfo typeInfDate;

+    wxDbSqlTypeInfo typeInfBlob;

 #endif
 
     // Public member functions
 #endif
 
     // Public member functions

-    wxDb(HENV &aHenv, bool FwdOnlyCursors=(bool)TRUE);
-    bool         Open(char *Dsn, char *Uid, char *AuthStr);  // Data Source Name, User ID, Password
+    wxDb(const HENV &aHenv, bool FwdOnlyCursors=(bool)wxODBC_FWD_ONLY_CURSORS);
+    ~wxDb();
+
+    // Data Source Name, User ID, Password and whether open should fail on data type not supported
+    bool         Open(const wxString& inConnectStr, bool failOnDataTypeUnsupported=true);
+    bool         Open(const wxString &Dsn, const wxString &Uid, const wxString &AuthStr, bool failOnDataTypeUnsupported=true);
+    bool         Open(wxDbConnectInf *dbConnectInf, bool failOnDataTypeUnsupported=true);
+    bool         Open(wxDb *copyDb);  // pointer to a wxDb whose connection info should be copied rather than re-queried

     void         Close(void);
     bool         CommitTrans(void);
     bool         RollbackTrans(void);
     bool         DispAllErrors(HENV aHenv, HDBC aHdbc = SQL_NULL_HDBC, HSTMT aHstmt = SQL_NULL_HSTMT);
     bool         GetNextError(HENV aHenv, HDBC aHdbc = SQL_NULL_HDBC, HSTMT aHstmt = SQL_NULL_HSTMT);
     void         DispNextError(void);
     void         Close(void);
     bool         CommitTrans(void);
     bool         RollbackTrans(void);
     bool         DispAllErrors(HENV aHenv, HDBC aHdbc = SQL_NULL_HDBC, HSTMT aHstmt = SQL_NULL_HSTMT);
     bool         GetNextError(HENV aHenv, HDBC aHdbc = SQL_NULL_HDBC, HSTMT aHstmt = SQL_NULL_HSTMT);
     void         DispNextError(void);

-    bool         CreateView(const char *viewName, const char *colList, const char *pSqlStmt, bool attemptDrop=TRUE);
-    bool         DropView(const char *viewName);
-    bool         ExecSql(const char *pSqlStmt);
+    bool         CreateView(const wxString &viewName, const wxString &colList, const wxString &pSqlStmt, bool attemptDrop=true);
+    bool         DropView(const wxString &viewName);
+    bool         ExecSql(const wxString &pSqlStmt);
+    bool         ExecSql(const wxString &pSqlStmt, wxDbColInf** columns, short& numcols);

     bool         GetNext(void);
     bool         GetData(UWORD colNo, SWORD cType, PTR pData, SDWORD maxLen, SDWORD FAR *cbReturned);
     bool         GetNext(void);
     bool         GetData(UWORD colNo, SWORD cType, PTR pData, SDWORD maxLen, SDWORD FAR *cbReturned);

-    bool         Grant(int privileges, const char *tableName, const char *userList = "PUBLIC");
-    int          TranslateSqlState(const wxChar *SQLState);
-    wxDbInf     *GetCatalog(char *userID);
-    bool         Catalog(const char *userID=NULL, const char *fileName = SQL_CATALOG_FILENAME);
-    int          GetKeyFields(char *tableName, wxDbColInf* colInf, int nocols);
-
-    wxDbColInf  *GetColumns(char *tableName[], const char *userID=NULL);
-    wxDbColInf  *GetColumns(char *tableName, int *numCols, const char *userID=NULL); 
-
-    int          GetColumnCount(char *tableName, const char *userID=NULL);
-    char        *GetDatabaseName(void) {return dbInf.dbmsName;}
-    char        *GetDataSource(void)   {return dsn;}
-    char        *GetUsername(void)     {return uid;}
-    char        *GetPassword(void)     {return authStr;}
-    bool         IsOpen(void)          {return dbIsOpen;}
-    HENV         GetHENV(void)         {return henv;}
-    HDBC         GetHDBC(void)         {return hdbc;}
-    HSTMT        GetHSTMT(void)        {return hstmt;}
-    int          GetTableCount()       {return nTables;};  // number of tables using this connection
-    wxDbSqlTypeInfo GetTypeInfVarchar(){return typeInfVarchar;}
-    wxDbSqlTypeInfo GetTypeInfInteger(){return typeInfInteger;}
-    wxDbSqlTypeInfo GetTypeInfFloat()  {return typeInfFloat;}
-    wxDbSqlTypeInfo GetTypeInfDate()   {return typeInfDate;}
-
-    bool         TableExists(const char *tableName, const char *userID=NULL, const char *path=NULL);  // Table name can refer to a table, view, alias or synonym
-    void         LogError(const char *errMsg, const char *SQLState = 0) {logError(errMsg, SQLState);}
+    bool         Grant(int privileges, const wxString &tableName, const wxString &userList = wxT("PUBLIC"));
+    int          TranslateSqlState(const wxString &SQLState);
+    wxDbInf     *GetCatalog(const wxChar *userID=NULL);
+    bool         Catalog(const wxChar *userID=NULL, const wxString &fileName=SQL_CATALOG_FILENAME);
+    int          GetKeyFields(const wxString &tableName, wxDbColInf* colInf, UWORD noCols);
+
+    wxDbColInf  *GetColumns(wxChar *tableName[], const wxChar *userID=NULL);
+    wxDbColInf  *GetColumns(const wxString &tableName, UWORD *numCols, const wxChar *userID=NULL);
+
+    int             GetColumnCount(const wxString &tableName, const wxChar *userID=NULL);
+    const wxChar   *GetDatabaseName(void)  {return dbInf.dbmsName;}
+    const wxString &GetDataSource(void)    {return dsn;}
+    const wxString &GetDatasourceName(void){return dsn;}
+    const wxString &GetUsername(void)      {return uid;}
+    const wxString &GetPassword(void)      {return authStr;}
+    const wxString &GetConnectionInStr(void)  {return inConnectionStr;}
+    const wxString &GetConnectionOutStr(void) {return outConnectionStr;}
+    bool            IsOpen(void)           {return dbIsOpen;}
+    bool            OpenedWithConnectionString(void) {return dbOpenedWithConnectionString;}
+    HENV            GetHENV(void)          {return henv;}
+    HDBC            GetHDBC(void)          {return hdbc;}
+    HSTMT           GetHSTMT(void)         {return hstmt;}
+    int             GetTableCount()        {return nTables;}  // number of tables using this connection
+    wxDbSqlTypeInfo GetTypeInfVarchar()    {return typeInfVarchar;}
+    wxDbSqlTypeInfo GetTypeInfInteger()    {return typeInfInteger;}
+    wxDbSqlTypeInfo GetTypeInfFloat()      {return typeInfFloat;}
+    wxDbSqlTypeInfo GetTypeInfDate()       {return typeInfDate;}
+    wxDbSqlTypeInfo GetTypeInfBlob()       {return typeInfBlob;}
+
+    // tableName can refer to a table, view, alias or synonym
+    bool         TableExists(const wxString &tableName, const wxChar *userID=NULL,
+                             const wxString &tablePath=wxEmptyString);
+    bool         TablePrivileges(const wxString &tableName, const wxString &priv,
+                                 const wxChar *userID=NULL, const wxChar *schema=NULL,
+                                 const wxString &path=wxEmptyString);
+
+    // These two functions return the table name or column name in a form ready
+    // for use in SQL statements.  For example, if the datasource allows spaces
+    // in the table name or column name, the returned string will have the
+    // correct enclosing marks around the name to allow it to be properly
+    // included in a SQL statement
+    const wxString  SQLTableName(const wxChar *tableName);
+    const wxString  SQLColumnName(const wxChar *colName);
+
+    void         LogError(const wxString &errMsg, const wxString &SQLState = wxEmptyString)
+                        { logError(errMsg, SQLState); }

     void         SetDebugErrorMessages(bool state) { silent = !state; }
     void         SetDebugErrorMessages(bool state) { silent = !state; }

-    bool         SetSqlLogging(wxDbSqlLogState state, const wxChar *filename = SQL_LOG_FILENAME, bool append = FALSE);
-    bool         WriteSqlLog(const wxChar *logMsg);
+    bool         SetSqlLogging(wxDbSqlLogState state, const wxString &filename = SQL_LOG_FILENAME,
+                               bool append = false);
+    bool         WriteSqlLog(const wxString &logMsg);
+

     wxDBMS       Dbms(void);
     wxDBMS       Dbms(void);

+    bool         ModifyColumn(const wxString &tableName, const wxString &columnName,
+                              int dataType, ULONG columnLength=0,
+                              const wxString &optionalParam=wxEmptyString);
+

     bool         FwdOnlyCursors(void)  {return fwdOnlyCursors;}
 
     // These two functions are provided strictly for use by wxDbTable.
     bool         FwdOnlyCursors(void)  {return fwdOnlyCursors;}
 
     // These two functions are provided strictly for use by wxDbTable.


@@ -535,19 +701,23 @@ public:
 // or for multiple database support.
 struct wxDbList
 {
 // or for multiple database support.
 struct wxDbList
 {

-    wxDbList *PtrPrev;                      // Pointer to previous item in the list
-    wxChar    Dsn[SQL_MAX_DSN_LENGTH+1];    // Data Source Name
-    wxDb     *PtrDb;                        // Pointer to the wxDb object
-    bool      Free;                         // Is item free or in use?
-    wxDbList *PtrNext;                      // Pointer to next item in the list
+    wxDbList *PtrPrev;       // Pointer to previous item in the list
+    wxString  Dsn;           // Data Source Name
+    wxString  Uid;           // User ID
+    wxString  AuthStr;       // Authorization string (password)
+    wxString  ConnectionStr; // Connection string used instead of DSN
+    wxDb     *PtrDb;         // Pointer to the wxDb object
+    bool      Free;          // Is item free or in use?
+    wxDbList *PtrNext;       // Pointer to next item in the list

 };
 
 };
 

+

 #ifdef __WXDEBUG__
 #include "wx/object.h"
 class wxTablesInUse : public wxObject
 {
     public:
 #ifdef __WXDEBUG__
 #include "wx/object.h"
 class wxTablesInUse : public wxObject
 {
     public:

-        const char    *tableName;
+        const wxChar  *tableName;

         ULONG          tableID;
         class wxDb    *pDb;
 };  // wxTablesInUse
         ULONG          tableID;
         class wxDb    *pDb;
 };  // wxTablesInUse


@@ -557,28 +727,39 @@ class wxTablesInUse : public wxObject
 // The following routines allow a user to get new database connections, free them
 // for other code segments to use, or close all of them when the application has
 // completed.
 // The following routines allow a user to get new database connections, free them
 // for other code segments to use, or close all of them when the application has
 // completed.

-wxDb  WXDLLEXPORT *wxDbGetConnection(wxDbConnectInf *pDbConfig, bool FwdOnlyCursors=(bool)wxODBC_FWD_ONLY_CURSORS);
-bool  WXDLLEXPORT  wxDbFreeConnection(wxDb *pDb);
-void  WXDLLEXPORT  wxDbCloseConnections(void);
-int   WXDLLEXPORT  wxDbConnectionsInUse(void);
+wxDb  WXDLLIMPEXP_ODBC *wxDbGetConnection(wxDbConnectInf *pDbConfig, bool FwdOnlyCursors=(bool)wxODBC_FWD_ONLY_CURSORS);
+bool  WXDLLIMPEXP_ODBC  wxDbFreeConnection(wxDb *pDb);
+void  WXDLLIMPEXP_ODBC  wxDbCloseConnections(void);
+int   WXDLLIMPEXP_ODBC  wxDbConnectionsInUse(void);
+
+
+// Writes a message to the wxLog window (stdout usually) when an internal error
+// situation occurs.  This function only works in DEBUG builds
+const wxChar WXDLLIMPEXP_ODBC *
+wxDbLogExtendedErrorMsg(const wxChar *userText,
+                        wxDb *pDb,
+                        const wxChar *ErrFile,
+                        int ErrLine);

 
 
 // This function sets the sql log state for all open wxDb objects
 
 
 // This function sets the sql log state for all open wxDb objects

-bool wxDbSqlLog(wxDbSqlLogState state, const wxChar *filename = SQL_LOG_FILENAME);
+bool WXDLLIMPEXP_ODBC
+wxDbSqlLog(wxDbSqlLogState state, const wxString &filename = SQL_LOG_FILENAME);

 
 
 #if 0
 // MSW/VC6 ONLY!!!  Experimental
 
 
 #if 0
 // MSW/VC6 ONLY!!!  Experimental

-int WXDLLEXPORT wxDbCreateDataSource(const char *driverName, const char *dsn, const char *description="",
-                                     bool sysDSN=FALSE, const char *defDir="", wxWindow *parent=NULL);
+int WXDLLEXPORT wxDbCreateDataSource(const wxString &driverName, const wxString &dsn, const wxString &description=wxEmptyString,
+                                     bool sysDSN=false, const wxString &defDir=wxEmptyString, wxWindow *parent=NULL);

 #endif
 
 // This routine allows you to query a driver manager
 // for a list of available datasources.  Call this routine
 // the first time using SQL_FETCH_FIRST.  Continue to call it
 // using SQL_FETCH_NEXT until you've exhausted the list.
 #endif
 
 // This routine allows you to query a driver manager
 // for a list of available datasources.  Call this routine
 // the first time using SQL_FETCH_FIRST.  Continue to call it
 // using SQL_FETCH_NEXT until you've exhausted the list.

-bool WXDLLEXPORT wxDbGetDataSource(HENV henv, char *Dsn, SWORD DsnMax, char *DsDesc, SWORD DsDescMax,
-                                   UWORD direction = SQL_FETCH_NEXT);
+bool WXDLLIMPEXP_ODBC
+wxDbGetDataSource(HENV henv, wxChar *Dsn, SWORD DsnMaxLength, wxChar *DsDesc,
+                  SWORD DsDescMaxLength, UWORD direction = SQL_FETCH_NEXT);

 
 
 // Change this to 0 to remove use of all deprecated functions
 
 
 // Change this to 0 to remove use of all deprecated functions


@@ -609,15 +790,19 @@ typedef wxTablesInUse        CstructTablesInUse;
 #endif
 
 // Deprecated function names that are replaced by the function names listed above
 #endif
 
 // Deprecated function names that are replaced by the function names listed above

-wxDB  WXDLLEXPORT *GetDbConnection(DbStuff *pDbStuff, bool FwdOnlyCursors=(bool)wxODBC_FWD_ONLY_CURSORS);
-bool  WXDLLEXPORT  FreeDbConnection(wxDB *pDb);
-void  WXDLLEXPORT  CloseDbConnections(void);
-int   WXDLLEXPORT  NumberDbConnectionsInUse(void);
+wxDB  WXDLLIMPEXP_ODBC
+*GetDbConnection(DbStuff *pDbStuff, bool FwdOnlyCursors=(bool)wxODBC_FWD_ONLY_CURSORS);
+bool  WXDLLIMPEXP_ODBC  FreeDbConnection(wxDB *pDb);
+void  WXDLLIMPEXP_ODBC  CloseDbConnections(void);
+int   WXDLLIMPEXP_ODBC  NumberDbConnectionsInUse(void);

 
 bool SqlLog(sqlLog state, const wxChar *filename = SQL_LOG_FILENAME);
 
 
 bool SqlLog(sqlLog state, const wxChar *filename = SQL_LOG_FILENAME);
 

-bool WXDLLEXPORT GetDataSource(HENV henv, char *Dsn, SWORD DsnMax, char *DsDesc, SWORD DsDescMax,
-                               UWORD direction = SQL_FETCH_NEXT);
+bool WXDLLIMPEXP_ODBC
+GetDataSource(HENV henv, char *Dsn, SWORD DsnMaxLength, char *DsDesc, SWORD DsDescMaxLength,
+              UWORD direction = SQL_FETCH_NEXT);
+

 #endif  // Deprecated structures/classes/functions
 
 #endif  // Deprecated structures/classes/functions
 

-#endif
+#endif // _WX_DB_H_
+