]> git.saurik.com Git - wxWidgets.git/blobdiff - src/common/db.cpp
Added wxWakeUpIdle() for MSW and empty stubs for Motif, OS2, and Mac
[wxWidgets.git] / src / common / db.cpp
index 9125384a3fd5df3e5312f627000faaed9e497578..c9a7b9ae632ed395c15616cdd30a44e6cb54882d 100644 (file)
@@ -5,13 +5,19 @@
 //              source such as opening and closing the data source.
 // Author:      Doug Card
 // Modified by:
-// Mods:        Dec, 1998: Added support for SQL statement logging and database
-//              cataloging
+// Mods:        Dec, 1998: 
+//                -Added support for SQL statement logging and database cataloging
+// Mods:        April, 1999
+//                                             -Added QUERY_ONLY mode support to reduce default number of cursors
+//                                             -Added additional SQL logging code
+//                -Added DEBUG-ONLY tracking of wxTable objects to detect orphaned DB connections
+//                                             -Set ODBC option to only read committed writes to the DB so all
+//                   databases operate the same in that respect
 // 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,
+// 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
 //                 the wxWindows GUI development toolkit.
 ///////////////////////////////////////////////////////////////////////////////
 
-#ifdef __GNUG__
-#pragma implementation "db.h"
-#endif
-
 /*
 // SYNOPSIS START
 // SYNOPSIS STOP
 */
 
-/*
+#include "wx/wxprec.h"
+
+// Use this line for wxWindows v1.x
+//#include "wx_ver.h"
+// Use this line for wxWindows v2.x
+#include "wx/version.h"
+
+#if wxMAJOR_VERSION == 2
+       #ifdef __GNUG__
+       #pragma implementation "db.h"
+       #endif
+#endif
+
 #ifdef DBDEBUG_CONSOLE
        #include <iostream.h>
 #endif
-*/
-
-#include  "wx/wxprec.h"
 
 #ifdef    __BORLANDC__
-  #pragma hdrstop
+       #pragma hdrstop
 #endif  //__BORLANDC__
 
-#ifndef WX_PRECOMP
-  #include  <wx/wx.h>
-#endif //WX_PRECOMP
+#if wxMAJOR_VERSION == 2
+        #ifndef WX_PRECOMP
+                #include "wx/string.h"
+                #include "wx/object.h"
+                #include "wx/list.h"
+                #include "wx/utils.h"
+                #include "wx/msgdlg.h"
+       #endif
+       #include "wx/filefn.h"
+       #include "wx/wxchar.h"
+#endif
+
+#if wxMAJOR_VERSION == 1
+#      if defined(wx_msw) || defined(wx_x)
+#              ifdef WX_PRECOMP
+#                      include "wx_prec.h"
+#              else
+#                      include "wx.h"
+#              endif
+#      endif
+#      define wxUSE_ODBC 1
+#endif
 
 #if wxUSE_ODBC
 
 #include <stdio.h>
 #include <string.h>
 #include <assert.h>
-#include "wx/db.h"
+#include <stdlib.h>
+#include <ctype.h>
+#if   wxMAJOR_VERSION == 1
+       #include "db.h"
+#elif wxMAJOR_VERSION == 2
+       #include "wx/db.h"
+#endif
+
+DbList WXDLLEXPORT *PtrBegDbList = 0;
+
+#ifdef __WXDEBUG__
+       extern wxList TablesInUse;
+#endif
+
 
-DbList *PtrBegDbList = 0;
+// SQL Log defaults to be used by GetDbConnection
+enum sqlLog SQLLOGstate                                = sqlLogOFF;
+
+char SQLLOGfn[DB_PATH_MAX+1] = "sqllog.txt";
+
+// The wxDB::errorList is copied to this variable when the wxDB object
+// is closed.  This way, the error list is still available after the
+// database object is closed.  This is necessary if the database 
+// connection fails so the calling application can show the operator
+// 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.
+char DBerrorList[DB_MAX_ERROR_HISTORY][DB_MAX_ERROR_MSG_LEN];
 
 /********** wxDB Constructor **********/
 wxDB::wxDB(HENV &aHenv)
@@ -63,6 +118,7 @@ wxDB::wxDB(HENV &aHenv)
 
        fpSqlLog                = 0;                            // Sql Log file pointer
        sqlLogState = sqlLogOFF;        // By default, logging is turned off
+       nTables         = 0;
        
        strcpy(sqlState,"");
        strcpy(errorMsg,"");
@@ -121,10 +177,10 @@ bool wxDB::Open(char *Dsn, char *Uid, char *AuthStr)
        uid             = Uid;
        authStr = AuthStr;
 
-#ifndef FWD_ONLY_CURSORS
-
        RETCODE retcode;
 
+#if !wxODBC_FWD_ONLY_CURSORS
+
        // 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);
@@ -139,11 +195,21 @@ bool wxDB::Open(char *Dsn, char *Uid, char *AuthStr)
 #endif
 
        // Connect to the data source
-       if (SQLConnect(hdbc, (UCHAR FAR *) Dsn,         SQL_NTS,
-                                                               (UCHAR FAR *) Uid,              SQL_NTS,
-                                                               (UCHAR FAR *) AuthStr,  SQL_NTS) != SQL_SUCCESS)
+       retcode = SQLConnect(hdbc, (UCHAR FAR *) Dsn,           SQL_NTS,
+                                                                          (UCHAR FAR *) Uid,           SQL_NTS,
+                                                                               (UCHAR FAR *) AuthStr,SQL_NTS);
+       if (retcode == SQL_SUCCESS_WITH_INFO)
+               DispAllErrors(henv, hdbc);
+       else if (retcode != SQL_SUCCESS)
                return(DispAllErrors(henv, hdbc));
 
+/*
+       If using Intersolv branded ODBC drivers, this is the place where you would substitute
+       your branded driver license information
+
+       SQLSetConnectOption(hdbc, 1041, (UDWORD) "");
+       SQLSetConnectOption(hdbc, 1042, (UDWORD) "");
+*/
        // Mark database as open
        dbIsOpen = TRUE;
 
@@ -239,10 +305,20 @@ bool wxDB::Open(char *Dsn, char *Uid, char *AuthStr)
                typeInfInteger.FsqlType = SQL_INTEGER;
 
        // Date/Time
-       if (! getDataTypeInfo(SQL_TIMESTAMP, typeInfDate))
-               return(FALSE);
+       if (Dbms() != dbmsDBASE)
+   {
+               if (! getDataTypeInfo(SQL_TIMESTAMP, typeInfDate))
+                       return(FALSE);
+               else
+                       typeInfDate.FsqlType = SQL_TIMESTAMP;
+       }
        else
-               typeInfDate.FsqlType = SQL_TIMESTAMP;
+       {
+               if (! getDataTypeInfo(SQL_DATE, typeInfDate))
+                       return(FALSE);
+               else
+                       typeInfDate.FsqlType = SQL_DATE;
+       }
 
 #ifdef DBDEBUG_CONSOLE
        cout << "VARCHAR DATA TYPE: " << typeInfVarchar.TypeName << endl;
@@ -307,95 +383,101 @@ bool wxDB::setConnectionOptions(void)
 bool wxDB::getDbInfo(void)
 {
        SWORD cb;
+       RETCODE retcode;
 
-       if (SQLGetInfo(hdbc, SQL_SERVER_NAME, dbInf.serverName, 40, &cb) != SQL_SUCCESS)
+       if (SQLGetInfo(hdbc, SQL_SERVER_NAME, (UCHAR*) dbInf.serverName, 80, &cb) != SQL_SUCCESS)
                return(DispAllErrors(henv, hdbc));
 
-       if (SQLGetInfo(hdbc, SQL_DATABASE_NAME, dbInf.databaseName, 128, &cb) != SQL_SUCCESS)
+       if (SQLGetInfo(hdbc, SQL_DATABASE_NAME, (UCHAR*) dbInf.databaseName, 128, &cb) != SQL_SUCCESS)
                return(DispAllErrors(henv, hdbc));
 
-       if (SQLGetInfo(hdbc, SQL_DBMS_NAME, dbInf.dbmsName, 40, &cb) != SQL_SUCCESS)
+       if (SQLGetInfo(hdbc, SQL_DBMS_NAME, (UCHAR*) dbInf.dbmsName, 40, &cb) != SQL_SUCCESS)
                return(DispAllErrors(henv, hdbc));
 
-       if (SQLGetInfo(hdbc, SQL_DBMS_VER, dbInf.dbmsVer, 20, &cb) != SQL_SUCCESS)
+       // 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);
+       if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO )
                return(DispAllErrors(henv, hdbc));
 
-       if (SQLGetInfo(hdbc, SQL_ACTIVE_CONNECTIONS, &dbInf.maxConnections, sizeof(dbInf.maxConnections), &cb) != SQL_SUCCESS)
+       if (SQLGetInfo(hdbc, SQL_ACTIVE_CONNECTIONS, (UCHAR*) &dbInf.maxConnections, sizeof(dbInf.maxConnections), &cb) != SQL_SUCCESS)
                return(DispAllErrors(henv, hdbc));
 
-       if (SQLGetInfo(hdbc, SQL_ACTIVE_STATEMENTS, &dbInf.maxStmts, sizeof(dbInf.maxStmts), &cb) != SQL_SUCCESS)
+       if (SQLGetInfo(hdbc, SQL_ACTIVE_STATEMENTS, (UCHAR*) &dbInf.maxStmts, sizeof(dbInf.maxStmts), &cb) != SQL_SUCCESS)
                return(DispAllErrors(henv, hdbc));
 
-       if (SQLGetInfo(hdbc, SQL_DRIVER_NAME, dbInf.driverName, 40, &cb) != SQL_SUCCESS)
+       if (SQLGetInfo(hdbc, SQL_DRIVER_NAME, (UCHAR*) dbInf.driverName, 40, &cb) != SQL_SUCCESS)
                return(DispAllErrors(henv, hdbc));
 
-       if (SQLGetInfo(hdbc, SQL_DRIVER_ODBC_VER, dbInf.odbcVer, 20, &cb) != SQL_SUCCESS)
+       if (SQLGetInfo(hdbc, SQL_DRIVER_ODBC_VER, (UCHAR*) dbInf.odbcVer, 60, &cb) == SQL_ERROR)
                return(DispAllErrors(henv, hdbc));
 
-       if (SQLGetInfo(hdbc, SQL_ODBC_VER, dbInf.drvMgrOdbcVer, 20, &cb) != SQL_SUCCESS)
+       retcode = SQLGetInfo(hdbc, SQL_ODBC_VER, (UCHAR*) dbInf.drvMgrOdbcVer, 60, &cb);
+       if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO)
                return(DispAllErrors(henv, hdbc));
 
-       if (SQLGetInfo(hdbc, SQL_DRIVER_VER, dbInf.driverVer, 40, &cb) != SQL_SUCCESS)
+       if (SQLGetInfo(hdbc, SQL_DRIVER_VER, (UCHAR*) dbInf.driverVer, 60, &cb) == SQL_ERROR)
                return(DispAllErrors(henv, hdbc));
 
-       if (SQLGetInfo(hdbc, SQL_ODBC_API_CONFORMANCE, &dbInf.apiConfLvl, sizeof(dbInf.apiConfLvl), &cb) != SQL_SUCCESS)
+       if (SQLGetInfo(hdbc, SQL_ODBC_API_CONFORMANCE, (UCHAR*) &dbInf.apiConfLvl, sizeof(dbInf.apiConfLvl), &cb) != SQL_SUCCESS)
                return(DispAllErrors(henv, hdbc));
 
-       if (SQLGetInfo(hdbc, SQL_ODBC_SAG_CLI_CONFORMANCE, &dbInf.cliConfLvl, sizeof(dbInf.cliConfLvl), &cb) != SQL_SUCCESS)
+       if (SQLGetInfo(hdbc, SQL_ODBC_SAG_CLI_CONFORMANCE, (UCHAR*) &dbInf.cliConfLvl, sizeof(dbInf.cliConfLvl), &cb) != SQL_SUCCESS)
                return(DispAllErrors(henv, hdbc));
 
-       if (SQLGetInfo(hdbc, SQL_ODBC_SQL_CONFORMANCE, &dbInf.sqlConfLvl, sizeof(dbInf.sqlConfLvl), &cb) != SQL_SUCCESS)
+       if (SQLGetInfo(hdbc, SQL_ODBC_SQL_CONFORMANCE, (UCHAR*) &dbInf.sqlConfLvl, sizeof(dbInf.sqlConfLvl), &cb) != SQL_SUCCESS)
                return(DispAllErrors(henv, hdbc));
 
-       if (SQLGetInfo(hdbc, SQL_OUTER_JOINS, dbInf.outerJoins, 2, &cb) != SQL_SUCCESS)
+       if (SQLGetInfo(hdbc, SQL_OUTER_JOINS, (UCHAR*) dbInf.outerJoins, 2, &cb) != SQL_SUCCESS)
                return(DispAllErrors(henv, hdbc));
 
-       if (SQLGetInfo(hdbc, SQL_PROCEDURES, dbInf.procedureSupport, 2, &cb) != SQL_SUCCESS)
+       if (SQLGetInfo(hdbc, SQL_PROCEDURES, (UCHAR*) dbInf.procedureSupport, 2, &cb) != SQL_SUCCESS)
                return(DispAllErrors(henv, hdbc));
 
-       if (SQLGetInfo(hdbc, SQL_CURSOR_COMMIT_BEHAVIOR, &dbInf.cursorCommitBehavior, sizeof(dbInf.cursorCommitBehavior), &cb) != SQL_SUCCESS)
+       if (SQLGetInfo(hdbc, SQL_CURSOR_COMMIT_BEHAVIOR, (UCHAR*) &dbInf.cursorCommitBehavior, sizeof(dbInf.cursorCommitBehavior), &cb) != SQL_SUCCESS)
                return(DispAllErrors(henv, hdbc));
 
-       if (SQLGetInfo(hdbc, SQL_CURSOR_ROLLBACK_BEHAVIOR, &dbInf.cursorRollbackBehavior, sizeof(dbInf.cursorRollbackBehavior), &cb) != SQL_SUCCESS)
+       if (SQLGetInfo(hdbc, SQL_CURSOR_ROLLBACK_BEHAVIOR, (UCHAR*) &dbInf.cursorRollbackBehavior, sizeof(dbInf.cursorRollbackBehavior), &cb) != SQL_SUCCESS)
                return(DispAllErrors(henv, hdbc));
 
-       if (SQLGetInfo(hdbc, SQL_NON_NULLABLE_COLUMNS, &dbInf.supportNotNullClause, sizeof(dbInf.supportNotNullClause), &cb) != SQL_SUCCESS)
+       if (SQLGetInfo(hdbc, SQL_NON_NULLABLE_COLUMNS, (UCHAR*) &dbInf.supportNotNullClause, sizeof(dbInf.supportNotNullClause), &cb) != SQL_SUCCESS)
                return(DispAllErrors(henv, hdbc));
 
-       if (SQLGetInfo(hdbc, SQL_ODBC_SQL_OPT_IEF, dbInf.supportIEF, 2, &cb) != SQL_SUCCESS)
+       if (SQLGetInfo(hdbc, SQL_ODBC_SQL_OPT_IEF, (UCHAR*) dbInf.supportIEF, 2, &cb) != SQL_SUCCESS)
                return(DispAllErrors(henv, hdbc));
 
-       if (SQLGetInfo(hdbc, SQL_DEFAULT_TXN_ISOLATION, &dbInf.txnIsolation, sizeof(dbInf.txnIsolation), &cb) != SQL_SUCCESS)
+       if (SQLGetInfo(hdbc, SQL_DEFAULT_TXN_ISOLATION, (UCHAR*) &dbInf.txnIsolation, sizeof(dbInf.txnIsolation), &cb) != SQL_SUCCESS)
                return(DispAllErrors(henv, hdbc));
 
-       if (SQLGetInfo(hdbc, SQL_TXN_ISOLATION_OPTION, &dbInf.txnIsolationOptions, sizeof(dbInf.txnIsolationOptions), &cb) != SQL_SUCCESS)
+       if (SQLGetInfo(hdbc, SQL_TXN_ISOLATION_OPTION, (UCHAR*) &dbInf.txnIsolationOptions, sizeof(dbInf.txnIsolationOptions), &cb) != SQL_SUCCESS)
                return(DispAllErrors(henv, hdbc));
 
-       if (SQLGetInfo(hdbc, SQL_FETCH_DIRECTION, &dbInf.fetchDirections, sizeof(dbInf.fetchDirections), &cb) != SQL_SUCCESS)
+       if (SQLGetInfo(hdbc, SQL_FETCH_DIRECTION, (UCHAR*) &dbInf.fetchDirections, sizeof(dbInf.fetchDirections), &cb) != SQL_SUCCESS)
                return(DispAllErrors(henv, hdbc));
 
-       if (SQLGetInfo(hdbc, SQL_LOCK_TYPES, &dbInf.lockTypes, sizeof(dbInf.lockTypes), &cb) != SQL_SUCCESS)
+       if (SQLGetInfo(hdbc, SQL_LOCK_TYPES, (UCHAR*) &dbInf.lockTypes, sizeof(dbInf.lockTypes), &cb) != SQL_SUCCESS)
                return(DispAllErrors(henv, hdbc));
 
-       if (SQLGetInfo(hdbc, SQL_POS_OPERATIONS, &dbInf.posOperations, sizeof(dbInf.posOperations), &cb) != SQL_SUCCESS)
+       if (SQLGetInfo(hdbc, SQL_POS_OPERATIONS, (UCHAR*) &dbInf.posOperations, sizeof(dbInf.posOperations), &cb) != SQL_SUCCESS)
                return(DispAllErrors(henv, hdbc));
 
-       if (SQLGetInfo(hdbc, SQL_POSITIONED_STATEMENTS, &dbInf.posStmts, sizeof(dbInf.posStmts), &cb) != SQL_SUCCESS)
+       if (SQLGetInfo(hdbc, SQL_POSITIONED_STATEMENTS, (UCHAR*) &dbInf.posStmts, sizeof(dbInf.posStmts), &cb) != SQL_SUCCESS)
                return(DispAllErrors(henv, hdbc));
 
-       if (SQLGetInfo(hdbc, SQL_SCROLL_CONCURRENCY, &dbInf.scrollConcurrency, sizeof(dbInf.scrollConcurrency), &cb) != SQL_SUCCESS)
+       if (SQLGetInfo(hdbc, SQL_SCROLL_CONCURRENCY, (UCHAR*) &dbInf.scrollConcurrency, sizeof(dbInf.scrollConcurrency), &cb) != SQL_SUCCESS)
                return(DispAllErrors(henv, hdbc));
 
-       if (SQLGetInfo(hdbc, SQL_SCROLL_OPTIONS, &dbInf.scrollOptions, sizeof(dbInf.scrollOptions), &cb) != SQL_SUCCESS)
+       if (SQLGetInfo(hdbc, SQL_SCROLL_OPTIONS, (UCHAR*) &dbInf.scrollOptions, sizeof(dbInf.scrollOptions), &cb) != SQL_SUCCESS)
                return(DispAllErrors(henv, hdbc));
 
-       if (SQLGetInfo(hdbc, SQL_STATIC_SENSITIVITY, &dbInf.staticSensitivity, sizeof(dbInf.staticSensitivity), &cb) != SQL_SUCCESS)
+       if (SQLGetInfo(hdbc, SQL_STATIC_SENSITIVITY, (UCHAR*) &dbInf.staticSensitivity, sizeof(dbInf.staticSensitivity), &cb) != SQL_SUCCESS)
                return(DispAllErrors(henv, hdbc));
 
-       if (SQLGetInfo(hdbc, SQL_TXN_CAPABLE, &dbInf.txnCapable, sizeof(dbInf.txnCapable), &cb) != SQL_SUCCESS)
+       if (SQLGetInfo(hdbc, SQL_TXN_CAPABLE, (UCHAR*) &dbInf.txnCapable, sizeof(dbInf.txnCapable), &cb) != SQL_SUCCESS)
                return(DispAllErrors(henv, hdbc));
 
-       if (SQLGetInfo(hdbc, SQL_LOGIN_TIMEOUT, &dbInf.loginTimeout, sizeof(dbInf.loginTimeout), &cb) != SQL_SUCCESS)
+       if (SQLGetInfo(hdbc, SQL_LOGIN_TIMEOUT, (UCHAR*) &dbInf.loginTimeout, sizeof(dbInf.loginTimeout), &cb) != SQL_SUCCESS)
                return(DispAllErrors(henv, hdbc));
 
 #ifdef DBDEBUG_CONSOLE
@@ -625,16 +707,22 @@ bool wxDB::getDataTypeInfo(SWORD fSqlType, SqlTypeInfo &structSQLTypeInfo)
                return(FALSE);
        }
        // Obtain columns from the record
-       if (SQLGetData(hstmt, 1, SQL_C_CHAR, structSQLTypeInfo.TypeName, DB_TYPE_NAME_LEN, &cbRet) != SQL_SUCCESS)
+       if (SQLGetData(hstmt, 1, SQL_C_CHAR, (UCHAR*) structSQLTypeInfo.TypeName, DB_TYPE_NAME_LEN, &cbRet) != SQL_SUCCESS)
                return(DispAllErrors(henv, hdbc, hstmt));
-       if (SQLGetData(hstmt, 3, SQL_C_LONG, &structSQLTypeInfo.Precision, 0, &cbRet) != SQL_SUCCESS)
+       if (SQLGetData(hstmt, 3, SQL_C_LONG, (UCHAR*) &structSQLTypeInfo.Precision, 0, &cbRet) != SQL_SUCCESS)
                return(DispAllErrors(henv, hdbc, hstmt));
-       if (SQLGetData(hstmt, 8, SQL_C_SHORT, &structSQLTypeInfo.CaseSensitive, 0, &cbRet) != SQL_SUCCESS)
+       if (SQLGetData(hstmt, 8, SQL_C_SHORT, (UCHAR*) &structSQLTypeInfo.CaseSensitive, 0, &cbRet) != SQL_SUCCESS)
                return(DispAllErrors(henv, hdbc, hstmt));
-//     if (SQLGetData(hstmt, 14, SQL_C_SHORT, &structSQLTypeInfo.MinimumScale, 0, &cbRet) != SQL_SUCCESS)
+//     if (SQLGetData(hstmt, 14, SQL_C_SHORT, (UCHAR*) &structSQLTypeInfo.MinimumScale, 0, &cbRet) != SQL_SUCCESS)
+//             return(DispAllErrors(henv, hdbc, hstmt));
+
+//#ifdef __UNIX__ // BJO : IODBC knows about 5, not 15...
+//     if (SQLGetData(hstmt, 5, SQL_C_SHORT,(UCHAR*)  &structSQLTypeInfo.MaximumScale, 0, &cbRet) != SQL_SUCCESS)
 //             return(DispAllErrors(henv, hdbc, hstmt));
-       if (SQLGetData(hstmt, 15, SQL_C_SHORT, &structSQLTypeInfo.MaximumScale, 0, &cbRet) != SQL_SUCCESS)
+//#else
+       if (SQLGetData(hstmt, 15, SQL_C_SHORT,(UCHAR*)  &structSQLTypeInfo.MaximumScale, 0, &cbRet) != SQL_SUCCESS)
                return(DispAllErrors(henv, hdbc, hstmt));
+//#endif
 
        if (structSQLTypeInfo.MaximumScale < 0)
                structSQLTypeInfo.MaximumScale = 0;
@@ -655,7 +743,7 @@ void wxDB::Close(void)
        if (fpSqlLog)
        {
                fclose(fpSqlLog);
-               fpSqlLog = 0;  //glt
+               fpSqlLog = 0;
        }
 
        // Free statement handle
@@ -673,14 +761,44 @@ void wxDB::Close(void)
        if (SQLFreeConnect(hdbc) != SQL_SUCCESS)
                DispAllErrors(henv, hdbc);
 
+       // There should be zero Ctable objects still connected to this db object
+       assert(nTables == 0);
+
+#ifdef __WXDEBUG__
+       CstructTablesInUse *tiu;
+       wxNode *pNode;
+       pNode = TablesInUse.First();
+       char s[80];
+       char s2[80];
+       while (pNode)
+       {
+               tiu = (CstructTablesInUse *)pNode->Data();
+               if (tiu->pDb == this)
+               {
+                       sprintf(s, "(%-20s)     tableID:[%6lu]     pDb:[%p]", tiu->tableName,tiu->tableID,tiu->pDb);
+                       sprintf(s2,"Orphaned found using pDb:[%p]",this);
+                       wxMessageBox (s,s2);
+               }
+               pNode = pNode->Next();
+       }
+#endif
+
+       // Copy the error messages to a global variable
+       int i;
+       for (i = 0; i < DB_MAX_ERROR_HISTORY; i++)
+               strcpy(DBerrorList[i],errorList[i]);
+
 } // wxDB::Close()
 
 /********** wxDB::CommitTrans() **********/
 bool wxDB::CommitTrans(void)
 {
-       // Commit the transaction
-       if (SQLTransact(henv, hdbc, SQL_COMMIT) != SQL_SUCCESS)
-               return(DispAllErrors(henv, hdbc));
+       if (this)
+       {
+               // Commit the transaction
+               if (SQLTransact(henv, hdbc, SQL_COMMIT) != SQL_SUCCESS)
+                       return(DispAllErrors(henv, hdbc));
+       }
 
        // Completed successfully
        return(TRUE);
@@ -717,9 +835,13 @@ bool wxDB::DispAllErrors(HENV aHenv, HDBC aHdbc, HSTMT aHstmt)
                        getchar();
 #endif
                }
+
+#ifdef __WXDEBUG__
+               wxMessageBox(odbcErrMsg);
+#endif
        }
 
-       return(FALSE);  // This function alway's returns false.
+       return(FALSE);  // This function always returns false.
 
 } // wxDB::DispAllErrors()
 
@@ -763,7 +885,8 @@ void wxDB::logError(char *errMsg, char *SQLState)
 
        if (++pLast == DB_MAX_ERROR_HISTORY)
        {
-               for (int i = 0; i < DB_MAX_ERROR_HISTORY; i++)
+               int i;
+               for (i = 0; i < DB_MAX_ERROR_HISTORY; i++)
                        strcpy(errorList[i], errorList[i+1]);
                pLast--;
        }
@@ -774,188 +897,191 @@ void wxDB::logError(char *errMsg, char *SQLState)
                if ((dbStatus = TranslateSqlState(SQLState)) != DB_ERR_FUNCTION_SEQUENCE_ERROR)
                        DB_STATUS = dbStatus;
 
+       // Add the errmsg to the sql log
+       WriteSqlLog(errMsg);
+
 }  // wxDB::logError()
 
 /**********wxDB::TranslateSqlState()  **********/
 int wxDB::TranslateSqlState(char *SQLState)
 {
-       if (!strcmp(SQLState, "01000"))
+       if (!wxStrcmp(SQLState, "01000"))
                return(DB_ERR_GENERAL_WARNING);
-       if (!strcmp(SQLState, "01002"))
+       if (!wxStrcmp(SQLState, "01002"))
                return(DB_ERR_DISCONNECT_ERROR);
-       if (!strcmp(SQLState, "01004"))
+       if (!wxStrcmp(SQLState, "01004"))
                return(DB_ERR_DATA_TRUNCATED);
-       if (!strcmp(SQLState, "01006"))
+       if (!wxStrcmp(SQLState, "01006"))
                return(DB_ERR_PRIV_NOT_REVOKED);
-       if (!strcmp(SQLState, "01S00"))
+       if (!wxStrcmp(SQLState, "01S00"))
                return(DB_ERR_INVALID_CONN_STR_ATTR);
-       if (!strcmp(SQLState, "01S01"))
+       if (!wxStrcmp(SQLState, "01S01"))
                return(DB_ERR_ERROR_IN_ROW);
-       if (!strcmp(SQLState, "01S02"))
+       if (!wxStrcmp(SQLState, "01S02"))
                return(DB_ERR_OPTION_VALUE_CHANGED);
-       if (!strcmp(SQLState, "01S03"))
+       if (!wxStrcmp(SQLState, "01S03"))
                return(DB_ERR_NO_ROWS_UPD_OR_DEL);
-       if (!strcmp(SQLState, "01S04"))
+       if (!wxStrcmp(SQLState, "01S04"))
                return(DB_ERR_MULTI_ROWS_UPD_OR_DEL);
-       if (!strcmp(SQLState, "07001"))
+       if (!wxStrcmp(SQLState, "07001"))
                return(DB_ERR_WRONG_NO_OF_PARAMS);
-       if (!strcmp(SQLState, "07006"))
+       if (!wxStrcmp(SQLState, "07006"))
                return(DB_ERR_DATA_TYPE_ATTR_VIOL);
-       if (!strcmp(SQLState, "08001"))
+       if (!wxStrcmp(SQLState, "08001"))
                return(DB_ERR_UNABLE_TO_CONNECT);
-       if (!strcmp(SQLState, "08002"))
+       if (!wxStrcmp(SQLState, "08002"))
                return(DB_ERR_CONNECTION_IN_USE);
-       if (!strcmp(SQLState, "08003"))
+       if (!wxStrcmp(SQLState, "08003"))
                return(DB_ERR_CONNECTION_NOT_OPEN);
-       if (!strcmp(SQLState, "08004"))
+       if (!wxStrcmp(SQLState, "08004"))
                return(DB_ERR_REJECTED_CONNECTION);
-       if (!strcmp(SQLState, "08007"))
+       if (!wxStrcmp(SQLState, "08007"))
                return(DB_ERR_CONN_FAIL_IN_TRANS);
-       if (!strcmp(SQLState, "08S01"))
+       if (!wxStrcmp(SQLState, "08S01"))
                return(DB_ERR_COMM_LINK_FAILURE);
-       if (!strcmp(SQLState, "21S01"))
+       if (!wxStrcmp(SQLState, "21S01"))
                return(DB_ERR_INSERT_VALUE_LIST_MISMATCH);
-       if (!strcmp(SQLState, "21S02"))
+       if (!wxStrcmp(SQLState, "21S02"))
                return(DB_ERR_DERIVED_TABLE_MISMATCH);
-       if (!strcmp(SQLState, "22001"))
+       if (!wxStrcmp(SQLState, "22001"))
                return(DB_ERR_STRING_RIGHT_TRUNC);
-       if (!strcmp(SQLState, "22003"))
+       if (!wxStrcmp(SQLState, "22003"))
                return(DB_ERR_NUMERIC_VALUE_OUT_OF_RNG);
-       if (!strcmp(SQLState, "22005"))
+       if (!wxStrcmp(SQLState, "22005"))
                return(DB_ERR_ERROR_IN_ASSIGNMENT);
-       if (!strcmp(SQLState, "22008"))
+       if (!wxStrcmp(SQLState, "22008"))
                return(DB_ERR_DATETIME_FLD_OVERFLOW);
-       if (!strcmp(SQLState, "22012"))
+       if (!wxStrcmp(SQLState, "22012"))
                return(DB_ERR_DIVIDE_BY_ZERO);
-       if (!strcmp(SQLState, "22026"))
+       if (!wxStrcmp(SQLState, "22026"))
                return(DB_ERR_STR_DATA_LENGTH_MISMATCH);
-       if (!strcmp(SQLState, "23000"))
+       if (!wxStrcmp(SQLState, "23000"))
                return(DB_ERR_INTEGRITY_CONSTRAINT_VIOL);
-       if (!strcmp(SQLState, "24000"))
+       if (!wxStrcmp(SQLState, "24000"))
                return(DB_ERR_INVALID_CURSOR_STATE);
-       if (!strcmp(SQLState, "25000"))
+       if (!wxStrcmp(SQLState, "25000"))
                return(DB_ERR_INVALID_TRANS_STATE);
-       if (!strcmp(SQLState, "28000"))
+       if (!wxStrcmp(SQLState, "28000"))
                return(DB_ERR_INVALID_AUTH_SPEC);
-       if (!strcmp(SQLState, "34000"))
+       if (!wxStrcmp(SQLState, "34000"))
                return(DB_ERR_INVALID_CURSOR_NAME);
-       if (!strcmp(SQLState, "37000"))
+       if (!wxStrcmp(SQLState, "37000"))
                return(DB_ERR_SYNTAX_ERROR_OR_ACCESS_VIOL);
-       if (!strcmp(SQLState, "3C000"))
+       if (!wxStrcmp(SQLState, "3C000"))
                return(DB_ERR_DUPLICATE_CURSOR_NAME);
-       if (!strcmp(SQLState, "40001"))
+       if (!wxStrcmp(SQLState, "40001"))
                return(DB_ERR_SERIALIZATION_FAILURE);
-       if (!strcmp(SQLState, "42000"))
+       if (!wxStrcmp(SQLState, "42000"))
                return(DB_ERR_SYNTAX_ERROR_OR_ACCESS_VIOL2);
-       if (!strcmp(SQLState, "70100"))
+       if (!wxStrcmp(SQLState, "70100"))
                return(DB_ERR_OPERATION_ABORTED);
-       if (!strcmp(SQLState, "IM001"))
+       if (!wxStrcmp(SQLState, "IM001"))
                return(DB_ERR_UNSUPPORTED_FUNCTION);
-       if (!strcmp(SQLState, "IM002"))
+       if (!wxStrcmp(SQLState, "IM002"))
                return(DB_ERR_NO_DATA_SOURCE);
-       if (!strcmp(SQLState, "IM003"))
+       if (!wxStrcmp(SQLState, "IM003"))
                return(DB_ERR_DRIVER_LOAD_ERROR);
-       if (!strcmp(SQLState, "IM004"))
+       if (!wxStrcmp(SQLState, "IM004"))
                return(DB_ERR_SQLALLOCENV_FAILED);
-       if (!strcmp(SQLState, "IM005"))
+       if (!wxStrcmp(SQLState, "IM005"))
                return(DB_ERR_SQLALLOCCONNECT_FAILED);
-       if (!strcmp(SQLState, "IM006"))
+       if (!wxStrcmp(SQLState, "IM006"))
                return(DB_ERR_SQLSETCONNECTOPTION_FAILED);
-       if (!strcmp(SQLState, "IM007"))
+       if (!wxStrcmp(SQLState, "IM007"))
                return(DB_ERR_NO_DATA_SOURCE_DLG_PROHIB);
-       if (!strcmp(SQLState, "IM008"))
+       if (!wxStrcmp(SQLState, "IM008"))
                return(DB_ERR_DIALOG_FAILED);
-       if (!strcmp(SQLState, "IM009"))
+       if (!wxStrcmp(SQLState, "IM009"))
                return(DB_ERR_UNABLE_TO_LOAD_TRANSLATION_DLL);
-       if (!strcmp(SQLState, "IM010"))
+       if (!wxStrcmp(SQLState, "IM010"))
                return(DB_ERR_DATA_SOURCE_NAME_TOO_LONG);
-       if (!strcmp(SQLState, "IM011"))
+       if (!wxStrcmp(SQLState, "IM011"))
                return(DB_ERR_DRIVER_NAME_TOO_LONG);
-       if (!strcmp(SQLState, "IM012"))
+       if (!wxStrcmp(SQLState, "IM012"))
                return(DB_ERR_DRIVER_KEYWORD_SYNTAX_ERROR);
-       if (!strcmp(SQLState, "IM013"))
+       if (!wxStrcmp(SQLState, "IM013"))
                return(DB_ERR_TRACE_FILE_ERROR);
-       if (!strcmp(SQLState, "S0001"))
+       if (!wxStrcmp(SQLState, "S0001"))
                return(DB_ERR_TABLE_OR_VIEW_ALREADY_EXISTS);
-       if (!strcmp(SQLState, "S0002"))
+       if (!wxStrcmp(SQLState, "S0002"))
                return(DB_ERR_TABLE_NOT_FOUND);
-       if (!strcmp(SQLState, "S0011"))
+       if (!wxStrcmp(SQLState, "S0011"))
                return(DB_ERR_INDEX_ALREADY_EXISTS);
-       if (!strcmp(SQLState, "S0012"))
+       if (!wxStrcmp(SQLState, "S0012"))
                return(DB_ERR_INDEX_NOT_FOUND);
-       if (!strcmp(SQLState, "S0021"))
+       if (!wxStrcmp(SQLState, "S0021"))
                return(DB_ERR_COLUMN_ALREADY_EXISTS);
-       if (!strcmp(SQLState, "S0022"))
+       if (!wxStrcmp(SQLState, "S0022"))
                return(DB_ERR_COLUMN_NOT_FOUND);
-       if (!strcmp(SQLState, "S0023"))
+       if (!wxStrcmp(SQLState, "S0023"))
                return(DB_ERR_NO_DEFAULT_FOR_COLUMN);
-       if (!strcmp(SQLState, "S1000"))
+       if (!wxStrcmp(SQLState, "S1000"))
                return(DB_ERR_GENERAL_ERROR);
-       if (!strcmp(SQLState, "S1001"))
+       if (!wxStrcmp(SQLState, "S1001"))
                return(DB_ERR_MEMORY_ALLOCATION_FAILURE);
-       if (!strcmp(SQLState, "S1002"))
+       if (!wxStrcmp(SQLState, "S1002"))
                return(DB_ERR_INVALID_COLUMN_NUMBER);
-       if (!strcmp(SQLState, "S1003"))
+       if (!wxStrcmp(SQLState, "S1003"))
                return(DB_ERR_PROGRAM_TYPE_OUT_OF_RANGE);
-       if (!strcmp(SQLState, "S1004"))
+       if (!wxStrcmp(SQLState, "S1004"))
                return(DB_ERR_SQL_DATA_TYPE_OUT_OF_RANGE);
-       if (!strcmp(SQLState, "S1008"))
+       if (!wxStrcmp(SQLState, "S1008"))
                return(DB_ERR_OPERATION_CANCELLED);
-       if (!strcmp(SQLState, "S1009"))
+       if (!wxStrcmp(SQLState, "S1009"))
                return(DB_ERR_INVALID_ARGUMENT_VALUE);
-       if (!strcmp(SQLState, "S1010"))
+       if (!wxStrcmp(SQLState, "S1010"))
                return(DB_ERR_FUNCTION_SEQUENCE_ERROR);
-       if (!strcmp(SQLState, "S1011"))
+       if (!wxStrcmp(SQLState, "S1011"))
                return(DB_ERR_OPERATION_INVALID_AT_THIS_TIME);
-       if (!strcmp(SQLState, "S1012"))
+       if (!wxStrcmp(SQLState, "S1012"))
                return(DB_ERR_INVALID_TRANS_OPERATION_CODE);
-       if (!strcmp(SQLState, "S1015"))
+       if (!wxStrcmp(SQLState, "S1015"))
                return(DB_ERR_NO_CURSOR_NAME_AVAIL);
-       if (!strcmp(SQLState, "S1090"))
+       if (!wxStrcmp(SQLState, "S1090"))
                return(DB_ERR_INVALID_STR_OR_BUF_LEN);
-       if (!strcmp(SQLState, "S1091"))
+       if (!wxStrcmp(SQLState, "S1091"))
                return(DB_ERR_DESCRIPTOR_TYPE_OUT_OF_RANGE);
-       if (!strcmp(SQLState, "S1092"))
+       if (!wxStrcmp(SQLState, "S1092"))
                return(DB_ERR_OPTION_TYPE_OUT_OF_RANGE);
-       if (!strcmp(SQLState, "S1093"))
+       if (!wxStrcmp(SQLState, "S1093"))
                return(DB_ERR_INVALID_PARAM_NO);
-       if (!strcmp(SQLState, "S1094"))
+       if (!wxStrcmp(SQLState, "S1094"))
                return(DB_ERR_INVALID_SCALE_VALUE);
-       if (!strcmp(SQLState, "S1095"))
+       if (!wxStrcmp(SQLState, "S1095"))
                return(DB_ERR_FUNCTION_TYPE_OUT_OF_RANGE);
-       if (!strcmp(SQLState, "S1096"))
+       if (!wxStrcmp(SQLState, "S1096"))
                return(DB_ERR_INF_TYPE_OUT_OF_RANGE);
-       if (!strcmp(SQLState, "S1097"))
+       if (!wxStrcmp(SQLState, "S1097"))
                return(DB_ERR_COLUMN_TYPE_OUT_OF_RANGE);
-       if (!strcmp(SQLState, "S1098"))
+       if (!wxStrcmp(SQLState, "S1098"))
                return(DB_ERR_SCOPE_TYPE_OUT_OF_RANGE);
-       if (!strcmp(SQLState, "S1099"))
+       if (!wxStrcmp(SQLState, "S1099"))
                return(DB_ERR_NULLABLE_TYPE_OUT_OF_RANGE);
-       if (!strcmp(SQLState, "S1100"))
+       if (!wxStrcmp(SQLState, "S1100"))
                return(DB_ERR_UNIQUENESS_OPTION_TYPE_OUT_OF_RANGE);
-       if (!strcmp(SQLState, "S1101"))
+       if (!wxStrcmp(SQLState, "S1101"))
                return(DB_ERR_ACCURACY_OPTION_TYPE_OUT_OF_RANGE);
-       if (!strcmp(SQLState, "S1103"))
+       if (!wxStrcmp(SQLState, "S1103"))
                return(DB_ERR_DIRECTION_OPTION_OUT_OF_RANGE);
-       if (!strcmp(SQLState, "S1104"))
+       if (!wxStrcmp(SQLState, "S1104"))
                return(DB_ERR_INVALID_PRECISION_VALUE);
-       if (!strcmp(SQLState, "S1105"))
+       if (!wxStrcmp(SQLState, "S1105"))
                return(DB_ERR_INVALID_PARAM_TYPE);
-       if (!strcmp(SQLState, "S1106"))
+       if (!wxStrcmp(SQLState, "S1106"))
                return(DB_ERR_FETCH_TYPE_OUT_OF_RANGE);
-       if (!strcmp(SQLState, "S1107"))
+       if (!wxStrcmp(SQLState, "S1107"))
                return(DB_ERR_ROW_VALUE_OUT_OF_RANGE);
-       if (!strcmp(SQLState, "S1108"))
+       if (!wxStrcmp(SQLState, "S1108"))
                return(DB_ERR_CONCURRENCY_OPTION_OUT_OF_RANGE);
-       if (!strcmp(SQLState, "S1109"))
+       if (!wxStrcmp(SQLState, "S1109"))
                return(DB_ERR_INVALID_CURSOR_POSITION);
-       if (!strcmp(SQLState, "S1110"))
+       if (!wxStrcmp(SQLState, "S1110"))
                return(DB_ERR_INVALID_DRIVER_COMPLETION);
-       if (!strcmp(SQLState, "S1111"))
+       if (!wxStrcmp(SQLState, "S1111"))
                return(DB_ERR_INVALID_BOOKMARK_VALUE);
-       if (!strcmp(SQLState, "S1C00"))
+       if (!wxStrcmp(SQLState, "S1C00"))
                return(DB_ERR_DRIVER_NOT_CAPABLE);
-       if (!strcmp(SQLState, "S1T00"))
+       if (!wxStrcmp(SQLState, "S1T00"))
                return(DB_ERR_TIMEOUT_EXPIRED);
 
        // No match
@@ -1016,33 +1142,13 @@ bool wxDB::Grant(int privileges, char *tableName, char *userList)
 }  // wxDB::Grant()
 
 /********** wxDB::CreateView() **********/
-bool wxDB::CreateView(char *viewName, char *colList, char *pSqlStmt)
+bool wxDB::CreateView(char *viewName, char *colList, char *pSqlStmt, bool attemptDrop)
 {
        char sqlStmt[DB_MAX_STATEMENT_LEN];
 
        // Drop the view first
-       sprintf(sqlStmt, "DROP VIEW %s", viewName);
-       if (SQLExecDirect(hstmt, (UCHAR FAR *) sqlStmt, SQL_NTS) != SQL_SUCCESS)
-       {
-               // Check for sqlState = S0002, "Table or view not found".
-               // Ignore this error, bomb out on any other error.
-               // SQL Sybase Anwhere v5.5 returns an access violation error here
-               // (sqlstate = 42000) rather than an S0002.
-               GetNextError(henv, hdbc, hstmt);
-               if (strcmp(sqlState, "S0002") && strcmp(sqlState, "42000"))
-               {
-                       DispNextError();
-                       DispAllErrors(henv, hdbc, hstmt);
-                       RollbackTrans();
-                       return(FALSE);
-               }
-       }
-
-       WriteSqlLog(sqlStmt);
-
-#ifdef DBDEBUG_CONSOLE
-       cout << endl << sqlStmt << endl;
-#endif
+       if (attemptDrop && !DropView(viewName))
+               return FALSE;
 
        // Build the create view statement
        strcpy(sqlStmt, "CREATE VIEW ");
@@ -1068,9 +1174,54 @@ bool wxDB::CreateView(char *viewName, char *colList, char *pSqlStmt)
 
 }  // wxDB::CreateView()
 
+/********** wxDB::DropView()  **********/
+bool wxDB::DropView(char *viewName)
+{
+       // 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
+
+       char sqlStmt[DB_MAX_STATEMENT_LEN];
+
+       sprintf(sqlStmt, "DROP VIEW %s", viewName);
+
+       WriteSqlLog(sqlStmt);
+
+#ifdef DBDEBUG_CONSOLE
+       cout << endl << sqlStmt << endl;
+#endif
+
+       if (SQLExecDirect(hstmt, (UCHAR FAR *) sqlStmt, SQL_NTS) != SQL_SUCCESS)
+       {
+               // Check for "Base table not found" error and ignore
+               GetNextError(henv, hdbc, hstmt);
+               if (wxStrcmp(sqlState,"S0002"))  // "Base table not found"
+               {
+                       // Check for product specific error codes
+                       if (!((Dbms() == dbmsSYBASE_ASA && !wxStrcmp(sqlState,"42000"))))  // 5.x (and lower?)
+                       {
+                               DispNextError();
+                               DispAllErrors(henv, hdbc, hstmt);
+                               RollbackTrans();
+                               return(FALSE);
+                       }
+               }
+       }
+
+       // Commit the transaction
+       if (! CommitTrans())
+               return(FALSE);
+
+       return TRUE;
+
+}  // wxDB::DropView()
+
+
 /********** wxDB::ExecSql()  **********/
 bool wxDB::ExecSql(char *pSqlStmt)
 {
+       SQLFreeStmt(hstmt, SQL_CLOSE);
        if (SQLExecDirect(hstmt, (UCHAR FAR *) pSqlStmt, SQL_NTS) == SQL_SUCCESS)
                return(TRUE);
        else
@@ -1081,6 +1232,35 @@ bool wxDB::ExecSql(char *pSqlStmt)
 
 }  // wxDB::ExecSql()
 
+/********** wxDB::GetNext()  **********/
+bool wxDB::GetNext(void)
+{
+       if (SQLFetch(hstmt) == SQL_SUCCESS)
+               return(TRUE);
+       else
+       {
+               DispAllErrors(henv, hdbc, hstmt);
+               return(FALSE);
+       }
+
+}  // wxDB::GetNext()
+
+/********** wxDB::GetData()  **********/
+bool wxDB::GetData(UWORD colNo, SWORD cType, PTR pData, SDWORD maxLen, SDWORD FAR *cbReturned)
+{
+       assert(pData);
+       assert(cbReturned);
+
+       if (SQLGetData(hstmt, colNo, cType, pData, maxLen, cbReturned) == SQL_SUCCESS)
+               return(TRUE);
+       else
+       {
+               DispAllErrors(henv, hdbc, hstmt);
+               return(FALSE);
+       }
+
+}  // wxDB::GetData()
+
 /********** wxDB::GetColumns() **********/
 /*
  *             1) The last array element of the tableName[] argument must be zero (null).
@@ -1090,7 +1270,7 @@ bool wxDB::ExecSql(char *pSqlStmt)
  *                     CALLING FUNCTION IS RESPONSIBLE FOR DELETING THE MEMORY RETURNED WHEN IT
  *                     IS FINISHED WITH IT.  i.e.
  *
- *                     CcolInf *colInf = pDb->GetColumns(tableList);
+ *                     CcolInf *colInf = pDb->GetColumns(tableList, userID);
  *                     if (colInf)
  *                     {
  *                             // Use the column inf
@@ -1099,7 +1279,7 @@ bool wxDB::ExecSql(char *pSqlStmt)
  *                             delete [] colInf;
  *                     }
  */
-CcolInf *wxDB::GetColumns(char *tableName[])
+CcolInf *wxDB::GetColumns(char *tableName[], char *userID)
 {
        UINT noCols = 0;
        UINT colNo = 0;
@@ -1109,11 +1289,32 @@ CcolInf *wxDB::GetColumns(char *tableName[])
        char tblName[DB_MAX_TABLE_NAME_LEN+1];
        char colName[DB_MAX_COLUMN_NAME_LEN+1];
        SWORD sqlDataType;
+       char userIdUC[80+1];
+       char tableNameUC[DB_MAX_TABLE_NAME_LEN+1];
+
+       if (!userID || !strlen(userID))
+               userID = uid;
+
+       // dBase does not use user names, and some drivers fail if you try to pass one
+       if (Dbms() == dbmsDBASE)
+               userID = "";
+
+       // Oracle user names may only be in uppercase, so force 
+       // the name to uppercase
+       if (Dbms() == dbmsORACLE)
+       {
+               int i = 0;
+               for (char *p = userID; *p; p++)
+                       userIdUC[i++] = toupper(*p);
+               userIdUC[i] = 0;
+               userID = userIdUC;
+       }
 
        // Pass 1 - Determine how many columns there are.
        // Pass 2 - Allocate the CcolInf array and fill in
        //                              the array with the column information.
-       for (int pass = 1; pass <= 2; pass++)
+       int pass;
+       for (pass = 1; pass <= 2; pass++)
        {
                if (pass == 2)
                {
@@ -1129,24 +1330,55 @@ CcolInf *wxDB::GetColumns(char *tableName[])
                        colInf[noCols].sqlDataType = 0;
                }
                // Loop through each table name
-               for (int tbl = 0; tableName[tbl]; tbl++)
+               int tbl;
+               for (tbl = 0; tableName[tbl]; tbl++)
                {
+                       // Oracle table names are uppercase only, so force 
+                       // the name to uppercase just in case programmer forgot to do this
+                       if (Dbms() == dbmsORACLE)
+                       {
+                               int i = 0;
+                               for (char *p = tableName[tbl]; *p; p++)
+                                       tableNameUC[i++] = toupper(*p);
+                               tableNameUC[i] = 0;
+                       }
+                       else
+                               sprintf(tableNameUC,tableName[tbl]);
+
                        SQLFreeStmt(hstmt, SQL_CLOSE);
-                       retcode = SQLColumns(hstmt,
-                                                                               NULL, 0,                                                                                        // All qualifiers
-                                                                               NULL, 0,                                                                                        // All owners
-                                                                               (UCHAR *) tableName[tbl], SQL_NTS,
-                                                                               NULL, 0);                                                                               // All columns
+
+                       // MySQL 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 (wxStrcmp(userID,"") &&
+                                Dbms() != dbmsMY_SQL &&
+                                Dbms() != dbmsACCESS)
+                       {
+                               retcode = SQLColumns(hstmt,
+                                                                                       NULL, 0,                                                                                        // All qualifiers
+                                                                                       (UCHAR *) userID, SQL_NTS,                                      // Owner
+                                                                                       (UCHAR *) tableNameUC, SQL_NTS,
+                                                                                       NULL, 0);                                                                               // All columns
+                       }
+                       else
+                       {
+                               retcode = SQLColumns(hstmt,
+                                                                                       NULL, 0,                                                                                        // All qualifiers
+                                                                                       NULL, 0,                                                                                        // Owner
+                                                                                       (UCHAR *) tableNameUC, SQL_NTS,
+                                                                                       NULL, 0);                                                                               // All columns
+                       }
                        if (retcode != SQL_SUCCESS)
                        {  // Error occured, abort
                                DispAllErrors(henv, hdbc, hstmt);
                                if (colInf)
                                        delete [] colInf;
+                               SQLFreeStmt(hstmt, SQL_UNBIND);
+                               SQLFreeStmt(hstmt, SQL_CLOSE);
                                return(0);
                        }
-                       SQLBindCol(hstmt, 3, SQL_C_CHAR,   tblName,      DB_MAX_TABLE_NAME_LEN+1,  &cb);
-                       SQLBindCol(hstmt, 4, SQL_C_CHAR,   colName,      DB_MAX_COLUMN_NAME_LEN+1, &cb);
-                       SQLBindCol(hstmt, 5, SQL_C_SSHORT, &sqlDataType, 0,                        &cb);
+                       SQLBindCol(hstmt, 3, SQL_C_CHAR,   (UCHAR*) tblName,      DB_MAX_TABLE_NAME_LEN+1,  &cb);
+                       SQLBindCol(hstmt, 4, SQL_C_CHAR,   (UCHAR*) colName,      DB_MAX_COLUMN_NAME_LEN+1, &cb);
+                       SQLBindCol(hstmt, 5, SQL_C_SSHORT, (UCHAR*) &sqlDataType, 0,                        &cb);
                        while ((retcode = SQLFetch(hstmt)) == SQL_SUCCESS)
                        {
                                if (pass == 1)  // First pass, just add up the number of columns
@@ -1167,11 +1399,14 @@ CcolInf *wxDB::GetColumns(char *tableName[])
                                DispAllErrors(henv, hdbc, hstmt);
                                if (colInf)
                                        delete [] colInf;
+                               SQLFreeStmt(hstmt, SQL_UNBIND);
+                               SQLFreeStmt(hstmt, SQL_CLOSE);
                                return(0);
                        }
                }
        }
 
+       SQLFreeStmt(hstmt, SQL_UNBIND);
        SQLFreeStmt(hstmt, SQL_CLOSE);
        return colInf;
 
@@ -1181,7 +1416,6 @@ CcolInf *wxDB::GetColumns(char *tableName[])
 /********** wxDB::Catalog() **********/
 bool wxDB::Catalog(char *userID, char *fileName)
 {
-       assert(userID && strlen(userID));
        assert(fileName && strlen(fileName));
 
        RETCODE retcode;
@@ -1190,7 +1424,7 @@ bool wxDB::Catalog(char *userID, char *fileName)
        char            tblNameSave[DB_MAX_TABLE_NAME_LEN+1];
        char            colName[DB_MAX_COLUMN_NAME_LEN+1];
        SWORD           sqlDataType;
-       char            typeName[16];
+       char            typeName[30+1];
        SWORD           precision, length;
 
        FILE *fp = fopen(fileName,"wt");
@@ -1199,17 +1433,37 @@ bool wxDB::Catalog(char *userID, char *fileName)
 
        SQLFreeStmt(hstmt, SQL_CLOSE);
 
-       int i = 0;
-       char userIdUC[81];
-       for (char *p = userID; *p; p++)
-               userIdUC[i++] = toupper(*p);
-       userIdUC[i] = 0;
-
-       retcode = SQLColumns(hstmt,
-                                                               NULL, 0,                                                                                        // All qualifiers
-                                                               (UCHAR *) userIdUC, SQL_NTS,                            // User specified
-                                                               NULL, 0,                                                                                        // All tables
-                                                               NULL, 0);                                                                               // All columns
+       if (!userID || !strlen(userID))
+               userID = uid;
+
+       char userIdUC[80+1];
+       // Oracle user names may only be in uppercase, so force 
+       // the name to uppercase
+       if (Dbms() == dbmsORACLE)
+       {
+               int i = 0;
+               for (char *p = userID; *p; p++)
+                       userIdUC[i++] = toupper(*p);
+               userIdUC[i] = 0;
+               userID = userIdUC;
+       }
+
+       if (wxStrcmp(userID,""))
+       {
+               retcode = SQLColumns(hstmt,
+                                                                       NULL, 0,                                                                                        // All qualifiers
+                                                                       (UCHAR *) userID, SQL_NTS,                                      // User specified
+                                                                       NULL, 0,                                                                                        // All tables
+                                                                       NULL, 0);                                                                               // All columns
+       }
+       else
+       {
+               retcode = SQLColumns(hstmt,
+                                                                       NULL, 0,                                                                                        // All qualifiers
+                                                                       NULL, 0,                                                                                        // User specified
+                                                                       NULL, 0,                                                                                        // All tables
+                                                                       NULL, 0);                                                                               // All columns
+       }
        if (retcode != SQL_SUCCESS)
        {
                DispAllErrors(henv, hdbc, hstmt);
@@ -1217,12 +1471,12 @@ bool wxDB::Catalog(char *userID, char *fileName)
                return(FALSE);
        }
 
-       SQLBindCol(hstmt, 3, SQL_C_CHAR,   tblName,      DB_MAX_TABLE_NAME_LEN+1,  &cb);
-       SQLBindCol(hstmt, 4, SQL_C_CHAR,   colName,      DB_MAX_COLUMN_NAME_LEN+1, &cb);
-       SQLBindCol(hstmt, 5, SQL_C_SSHORT, &sqlDataType, 0,                        &cb);
-       SQLBindCol(hstmt, 6, SQL_C_CHAR,          typeName,              16,                       &cb);
-       SQLBindCol(hstmt, 7, SQL_C_SSHORT, &precision,   0,                        &cb);
-       SQLBindCol(hstmt, 8, SQL_C_SSHORT, &length,      0,                        &cb);
+       SQLBindCol(hstmt, 3, SQL_C_CHAR,   (UCHAR*)  tblName,     DB_MAX_TABLE_NAME_LEN+1,  &cb);
+       SQLBindCol(hstmt, 4, SQL_C_CHAR,   (UCHAR*)  colName,     DB_MAX_COLUMN_NAME_LEN+1, &cb);
+       SQLBindCol(hstmt, 5, SQL_C_SSHORT, (UCHAR*) &sqlDataType, 0,                        &cb);
+       SQLBindCol(hstmt, 6, SQL_C_CHAR,          (UCHAR*)  typeName,    sizeof(typeName),         &cb);
+       SQLBindCol(hstmt, 7, SQL_C_SSHORT, (UCHAR*) &precision,  0,                        &cb);
+       SQLBindCol(hstmt, 8, SQL_C_SSHORT, (UCHAR*) &length,     0,                        &cb);
 
        char outStr[256];
        strcpy(tblNameSave,"");
@@ -1230,7 +1484,7 @@ bool wxDB::Catalog(char *userID, char *fileName)
 
        while ((retcode = SQLFetch(hstmt)) == SQL_SUCCESS)
        {
-               if (strcmp(tblName,tblNameSave))
+               if (wxStrcmp(tblName,tblNameSave))
                {
                        if (cnt)
                                fputs("\n", fp);
@@ -1253,6 +1507,8 @@ bool wxDB::Catalog(char *userID, char *fileName)
                        tblName, colName, sqlDataType, typeName, precision, length);
                if (fputs(outStr, fp) == EOF)
                {
+                       SQLFreeStmt(hstmt, SQL_UNBIND);
+                       SQLFreeStmt(hstmt, SQL_CLOSE);
                        fclose(fp);
                        return(FALSE);
                }
@@ -1260,15 +1516,13 @@ bool wxDB::Catalog(char *userID, char *fileName)
        }
 
        if (retcode != SQL_NO_DATA_FOUND)
-       {
                DispAllErrors(henv, hdbc, hstmt);
-               fclose(fp);
-               return(FALSE);
-       }
 
+       SQLFreeStmt(hstmt, SQL_UNBIND);
        SQLFreeStmt(hstmt, SQL_CLOSE);
+
        fclose(fp);
-       return(TRUE);
+       return(retcode == SQL_NO_DATA_FOUND);
 
 }  // wxDB::Catalog()
 
@@ -1277,20 +1531,78 @@ bool wxDB::Catalog(char *userID, char *fileName)
 // 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.
-bool wxDB::TableExists(char *tableName)
+bool wxDB::TableExists(char *tableName, char *userID, char *tablePath)
 {
        assert(tableName && strlen(tableName));
 
+       if (Dbms() == dbmsDBASE)
+       {
+               wxString dbName;
+               if (tablePath && strlen(tablePath))
+                       dbName.sprintf("%s/%s.dbf",tablePath,tableName);
+               else
+                       dbName.sprintf("%s.dbf",tableName);
+               bool glt;
+               glt = wxFileExists(dbName.GetData());
+               return glt;
+       }
+
+       if (!userID || !strlen(userID))
+               userID = uid;
+
+       char userIdUC[80+1];
+       // Oracle user names may only be in uppercase, so force 
+       // the name to uppercase
+       if (Dbms() == dbmsORACLE)
+       {
+               int i = 0;
+               for (char *p = userID; *p; p++)
+                       userIdUC[i++] = toupper(*p);
+               userIdUC[i] = 0;
+               userID = userIdUC;
+       }
+
+       char tableNameUC[DB_MAX_TABLE_NAME_LEN+1];
+       // Oracle table names are uppercase only, so force 
+       // the name to uppercase just in case programmer forgot to do this
+       if (Dbms() == dbmsORACLE)
+       {
+               int i = 0;
+               for (char *p = tableName; *p; p++)
+                       tableNameUC[i++] = toupper(*p);
+               tableNameUC[i] = 0;
+       }
+       else
+               sprintf(tableNameUC,tableName);
+
        SQLFreeStmt(hstmt, SQL_CLOSE);
-       RETCODE retcode = SQLTables(hstmt,
-                                                                                NULL, 0,                                                                               // All qualifiers
-                                                                                NULL, 0,                                                                               // All owners
-                                                                                (UCHAR FAR *)tableName, SQL_NTS,
-                                                                                NULL, 0);                                                                              // All table types
+       RETCODE retcode;
+
+       // MySQL and Access cannot accept a user name when looking up table names, so we
+       // use the call below that leaves out the user name
+       if (wxStrcmp(userID,"") &&
+                Dbms() != dbmsMY_SQL &&
+                Dbms() != dbmsACCESS)
+       {
+               retcode = SQLTables(hstmt,
+                                                                 NULL, 0,                                                                              // All qualifiers
+                                                                 (UCHAR *) userID, SQL_NTS,                            // All owners
+                                                                 (UCHAR FAR *)tableNameUC, SQL_NTS,
+                                                                 NULL, 0);                                                                             // All table types
+       }
+       else
+       {
+               retcode = SQLTables(hstmt,
+                                                                 NULL, 0,                                                                              // All qualifiers
+                                                                 NULL, 0,                                                                              // All owners
+                                                                 (UCHAR FAR *)tableNameUC, SQL_NTS,
+                                                                 NULL, 0);                                                                             // All table types
+       }
        if (retcode != SQL_SUCCESS)
                return(DispAllErrors(henv, hdbc, hstmt));
 
-       if (SQLFetch(hstmt) != SQL_SUCCESS)
+       retcode = SQLFetch(hstmt);
+       if (retcode  != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO)
        {
                SQLFreeStmt(hstmt, SQL_CLOSE);
                return(DispAllErrors(henv, hdbc, hstmt));
@@ -1350,8 +1662,83 @@ bool wxDB::WriteSqlLog(char *logMsg)
 }  // wxDB::WriteSqlLog()
 
 
+/********** wxDB::Dbms() **********/
+/*
+ * Be aware that not all database engines use the exact same syntax, and not
+ * every ODBC compliant database is compliant to the same level of compliancy.
+ * Some manufacturers support the minimum Level 1 compliancy, and others up
+ * through Level 3.  Others support subsets of features for levels above 1.
+ *
+ * If you find an inconsistency between the wxDB class and a specific database
+ * engine, and an identifier to this section, and special handle the database in
+ * the area where behavior is non-conforming with the other databases.
+ *
+ *
+ * NOTES ABOUT ISSUES SPECIFIC TO EACH DATABASE ENGINE
+ * ---------------------------------------------------
+ *
+ * ORACLE
+ *             - Currently the only database supported by the class to support VIEWS
+ *
+ * DBASE
+ *             - 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.
+ *             - Table names can only be 8 characters long
+ *             - Column names can only be 10 characters long
+ *
+ * SYBASE (all)
+ *             - To lock a record during QUERY functions, the reserved word 'HOLDLOCK' must be added
+ *                     after every table name involved in the query/join if that tables matching record(s)
+ *                     are to be locked
+ *             - Ignores the keywords 'FOR UPDATE'.  Use the HOLDLOCK functionality described above
+ *
+ * SYBASE (Enterprise)
+ *             - If a column is part of the Primary Key, the column cannot be NULL
+ *
+ * MY_SQL
+ *             - If a column is part of the Primary Key, the column cannot be NULL
+ *             - Cannot support selecting for update [::CanSelectForUpdate()].  Always returns FALSE
+ *
+ * POSTGRES
+ *             - Does not support the keywords 'ASC' or 'DESC' as of release v6.5.0 
+ *
+ *
+ */
+DBMS wxDB::Dbms(void)
+{
+       wxChar baseName[20];
+
+       wxStrncpy(baseName,dbInf.dbmsName,6);
+       baseName[6] = 0;
+//     if (!wxStrnicmp(dbInf.dbmsName,"Oracle",6))
+       if (!wxStricmp(baseName,"Oracle"))
+               return(dbmsORACLE);
+       if (!wxStricmp(dbInf.dbmsName,"Adaptive Server Anywhere"))
+               return(dbmsSYBASE_ASA);
+       if (!wxStricmp(dbInf.dbmsName,"SQL Server"))  // Sybase Adaptive Server Enterprise
+               return(dbmsSYBASE_ASE);
+       if (!wxStricmp(dbInf.dbmsName,"Microsoft SQL Server"))
+               return(dbmsMS_SQL_SERVER);
+       if (!wxStricmp(dbInf.dbmsName,"MySQL"))
+               return(dbmsMY_SQL);
+       if (!wxStricmp(dbInf.dbmsName,"PostgreSQL"))  // v6.5.0
+               return(dbmsPOSTGRES);
+       if (!wxStricmp(dbInf.dbmsName,"ACCESS"))
+               return(dbmsACCESS);
+       wxStrncpy(baseName,dbInf.dbmsName,5);
+       baseName[5] = 0;
+//     if (!wxStrnicmp(dbInf.dbmsName,"DBASE",5))
+       if (!wxStricmp(baseName,"DBASE"))
+               return(dbmsDBASE);
+       return(dbmsUNIDENTIFIED);
+
+}  // wxDB::Dbms()
+
+
 /********** GetDbConnection() **********/
-wxDB *GetDbConnection(DbStuff *pDbStuff)
+wxDB WXDLLEXPORT *GetDbConnection(DbStuff *pDbStuff)
 {
        DbList *pList;
 
@@ -1361,7 +1748,7 @@ wxDB *GetDbConnection(DbStuff *pDbStuff)
        {
                // The database connection must be for the same datasource
                // name and must currently not be in use.
-               if (pList->Free && (! strcmp(pDbStuff->Dsn, pList->Dsn)))  // Found a free connection
+               if (pList->Free && (! wxStrcmp(pDbStuff->Dsn, pList->Dsn)))  // Found a free connection
                {
                        pList->Free = FALSE;
                        return(pList->PtrDb);
@@ -1394,7 +1781,10 @@ wxDB *GetDbConnection(DbStuff *pDbStuff)
 
        // Connect to the datasource
        if (pList->PtrDb->Open(pDbStuff->Dsn, pDbStuff->Uid, pDbStuff->AuthStr))
+       {
+               pList->PtrDb->SqlLog(SQLLOGstate,SQLLOGfn,TRUE);
                return(pList->PtrDb);
+       }
        else  // Unable to connect, destroy list item
        {
                if (pList->PtrPrev)
@@ -1411,7 +1801,7 @@ wxDB *GetDbConnection(DbStuff *pDbStuff)
 }  // GetDbConnection()
 
 /********** FreeDbConnection() **********/
-bool FreeDbConnection(wxDB *pDb)
+bool WXDLLEXPORT FreeDbConnection(wxDB *pDb)
 {
        DbList *pList;
 
@@ -1428,7 +1818,7 @@ bool FreeDbConnection(wxDB *pDb)
 }  // FreeDbConnection()
 
 /********** CloseDbConnections() **********/
-void CloseDbConnections(void)
+void WXDLLEXPORT CloseDbConnections(void)
 {
        DbList *pList, *pNext;
        
@@ -1448,7 +1838,7 @@ void CloseDbConnections(void)
 }  // CloseDbConnections()
 
 /********** NumberDbConnectionsInUse() **********/
-int NumberDbConnectionsInUse(void)
+int WXDLLEXPORT NumberDbConnectionsInUse(void)
 {
        DbList *pList;
        int cnt = 0;
@@ -1464,6 +1854,26 @@ int NumberDbConnectionsInUse(void)
 
 }  // NumberDbConnectionsInUse()
 
+/********** SqlLog() **********/
+bool SqlLog(enum sqlLog state, char *filename)
+{
+       bool append = FALSE;
+       DbList *pList;
+
+       for (pList = PtrBegDbList; pList; pList = pList->PtrNext)
+       {
+               if (!pList->PtrDb->SqlLog(state,filename,append))
+                       return(FALSE);
+               append = TRUE;
+       }
+
+       SQLLOGstate = state;
+       strcpy(SQLLOGfn,filename);
+
+       return(TRUE);
+
+}  // SqlLog()
+
 /********** GetDataSource() **********/
 bool GetDataSource(HENV henv, char *Dsn, SWORD DsnMax, char *DsDesc, SWORD DsDescMax,
                                                 UWORD direction)