]> git.saurik.com Git - wxWidgets.git/blobdiff - src/common/dbtable.cpp
unicode support
[wxWidgets.git] / src / common / dbtable.cpp
index a2ff52f2135c967fce73e30ae09b20ff4d6f4fcb..c5482f8a694e14fd559d1f9e105b34ae2d67561e 100644 (file)
@@ -24,7 +24,8 @@
 // SYNOPSIS START
 // SYNOPSIS STOP
 */
-#ifdef __GNUG__
+
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
     #pragma implementation "dbtable.h"
 #endif
 
 #endif
 
 #ifdef DBDEBUG_CONSOLE
-    #include "iostream.h"
+#if wxUSE_IOSTREAMH
+    #include <iostream.h>
+#else
+    #include <iostream>
+#endif
     #include "wx/ioswrap.h"
 #endif
 
@@ -44,9 +49,6 @@
     #include "wx/object.h"
     #include "wx/list.h"
     #include "wx/utils.h"
-    #if wxUSE_GUI
-        #include "wx/msgdlg.h"
-    #endif
     #include "wx/log.h"
 #endif
 #include "wx/filefn.h"
@@ -56,7 +58,6 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-//#include <assert.h>
 
 #include "wx/dbtable.h"
 
@@ -79,6 +80,16 @@ ULONG lastTableID = 0;
 #endif
 
 
+void csstrncpyt(wxChar *target, const wxChar *source, int n)
+{
+    while ( (*target++ = *source++) != '\0' && --n )
+        ;
+
+    *target = '\0';
+}
+
+
+
 /********** wxDbColDef::wxDbColDef() Constructor **********/
 wxDbColDef::wxDbColDef()
 {
@@ -314,17 +325,17 @@ void wxDbTable::cleanup()
         bool found = FALSE;
 
         wxNode *pNode;
-        pNode = TablesInUse.First();
+        pNode = TablesInUse.GetFirst();
         while (pNode && !found)
         {
-            if (((wxTablesInUse *)pNode->Data())->tableID == tableID)
+            if (((wxTablesInUse *)pNode->GetData())->tableID == tableID)
             {
                 found = TRUE;
                 if (!TablesInUse.DeleteNode(pNode))
                     wxLogDebug (s,wxT("Unable to delete node!"));
             }
             else
-                pNode = pNode->Next();
+                pNode = pNode->GetNext();
         }
         if (!found)
         {
@@ -407,7 +418,7 @@ bool wxDbTable::bindParams(bool forUpdate)
         return(FALSE);
 
     SWORD   fSqlType    = 0;
-    UDWORD  precision   = 0;
+    SDWORD  precision   = 0;
     SWORD   scale       = 0;
 
     // Bind each column of the table that should be bound
@@ -473,7 +484,7 @@ bool wxDbTable::bindParams(bool forUpdate)
                 break;
             case DB_DATA_TYPE_BLOB:
                 fSqlType = pDb->GetTypeInfBlob().FsqlType;
-                precision = 50000;
+                precision = -1;
                 scale = 0;
                 if (colDefs[i].Null)
                     colDefs[i].CbValue = SQL_NULL_DATA;
@@ -524,15 +535,16 @@ bool wxDbTable::bindUpdateParams(void)
 /********** wxDbTable::bindCols() **********/
 bool wxDbTable::bindCols(HSTMT cursor)
 {
+    static SDWORD cb;
+
     // Bind each column of the table to a memory address for fetching data
     UWORD i;
     for (i = 0; i < noCols; i++)
     {
+        cb = colDefs[i].CbValue;
         if (SQLBindCol(cursor, (UWORD)(i+1), colDefs[i].SqlCtype, (UCHAR*) colDefs[i].PtrDataObj,
-                       colDefs[i].SzDataObj, &colDefs[i].CbValue ) != SQL_SUCCESS)
-        {
+                       colDefs[i].SzDataObj, &cb ) != SQL_SUCCESS)
           return (pDb->DispAllErrors(henv, hdbc, cursor));
-        }
     }
 
     // Completed successfully
@@ -602,7 +614,7 @@ bool wxDbTable::execDelete(const wxString &pSqlStmt)
     RETCODE retcode;
 
     // Execute the DELETE statement
-    retcode = SQLExecDirect(hstmtDelete, (UCHAR FAR *) pSqlStmt.c_str(), SQL_NTS);
+    retcode = SQLExecDirect(hstmtDelete, (SQLTCHAR FAR *) pSqlStmt.c_str(), SQL_NTS);
 
     if (retcode == SQL_SUCCESS ||
         retcode == SQL_NO_DATA_FOUND ||
@@ -624,7 +636,7 @@ bool wxDbTable::execUpdate(const wxString &pSqlStmt)
     RETCODE retcode;
 
     // Execute the UPDATE statement
-    retcode = SQLExecDirect(hstmtUpdate, (UCHAR FAR *) pSqlStmt.c_str(), SQL_NTS);
+    retcode = SQLExecDirect(hstmtUpdate, (SQLTCHAR FAR *) pSqlStmt.c_str(), SQL_NTS);
 
     if (retcode == SQL_SUCCESS ||
         retcode == SQL_NO_DATA_FOUND ||
@@ -633,6 +645,37 @@ bool wxDbTable::execUpdate(const wxString &pSqlStmt)
         // Record updated successfully
         return(TRUE);
     }
+    else if (retcode == SQL_NEED_DATA)
+    {
+        PTR pParmID;
+        retcode = SQLParamData(hstmtUpdate, &pParmID);
+        while (retcode == SQL_NEED_DATA)
+        {
+            // Find the parameter
+            int i;
+            for (i=0; i < noCols; i++)
+            {
+                if (colDefs[i].PtrDataObj == pParmID)
+                {
+                    // We found it.  Store the parameter.
+                    retcode = SQLPutData(hstmtUpdate, pParmID, colDefs[i].SzDataObj);
+                    if (retcode != SQL_SUCCESS)
+                    {
+                        pDb->DispNextError();
+                        return pDb->DispAllErrors(henv, hdbc, hstmtUpdate);
+                    }
+                    break;
+                }
+            }
+        }
+        if (retcode == SQL_SUCCESS ||
+            retcode == SQL_NO_DATA_FOUND ||
+            retcode == SQL_SUCCESS_WITH_INFO)
+        {
+            // Record updated successfully
+            return(TRUE);
+        }
+    }
 
     // Problem updating record
     return(pDb->DispAllErrors(henv, hdbc, hstmtUpdate));
@@ -664,7 +707,7 @@ bool wxDbTable::query(int queryType, bool forUpdate, bool distinct, const wxStri
 
     // Execute the SQL SELECT statement
     int retcode;
-    retcode = SQLExecDirect(hstmt, (UCHAR FAR *) (queryType == DB_SELECT_STATEMENT ? pSqlStmt.c_str() : sqlStmt.c_str()), SQL_NTS);
+    retcode = SQLExecDirect(hstmt, (SQLTCHAR FAR *) (queryType == DB_SELECT_STATEMENT ? pSqlStmt.c_str() : sqlStmt.c_str()), SQL_NTS);
     if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO)
         return(pDb->DispAllErrors(henv, hdbc, hstmt));
 
@@ -763,7 +806,8 @@ bool wxDbTable::Open(bool checkPrivileges, bool checkTableExists)
     if (!queryOnly && noCols > 0)
     {
         bool needComma = FALSE;
-        sqlStmt.Printf(wxT("INSERT INTO %s ("), pDb->SQLTableName(tableName.c_str()));
+        sqlStmt.Printf(wxT("INSERT INTO %s ("),
+                       pDb->SQLTableName(tableName.c_str()).c_str());
         for (i = 0; i < noCols; i++)
         {
             if (! colDefs[i].InsertAllowed)
@@ -794,7 +838,7 @@ bool wxDbTable::Open(bool checkPrivileges, bool checkTableExists)
         // Prepare the insert statement for execution
         if (insertableCount)
         {
-            if (SQLPrepare(hstmtInsert, (UCHAR FAR *) sqlStmt.c_str(), SQL_NTS) != SQL_SUCCESS)
+            if (SQLPrepare(hstmtInsert, (SQLTCHAR FAR *) sqlStmt.c_str(), SQL_NTS) != SQL_SUCCESS)
                 return(pDb->DispAllErrors(henv, hdbc, hstmtInsert));
         }
         else
@@ -915,11 +959,13 @@ void wxDbTable::BuildDeleteStmt(wxString &pSqlStmt, int typeOfDel, const wxStrin
     // delete all records from the database in this case.
     if (typeOfDel == DB_DEL_WHERE && (pWhereClause.Length() == 0))
     {
-        pSqlStmt.Printf(wxT("DELETE FROM %s"), pDb->SQLTableName(tableName.c_str()));
+        pSqlStmt.Printf(wxT("DELETE FROM %s"),
+                        pDb->SQLTableName(tableName.c_str()).c_str());
         return;
     }
 
-    pSqlStmt.Printf(wxT("DELETE FROM %s WHERE "), pDb->SQLTableName(tableName.c_str()));
+    pSqlStmt.Printf(wxT("DELETE FROM %s WHERE "),
+                    pDb->SQLTableName(tableName.c_str()).c_str());
 
     // Append the WHERE clause to the SQL DELETE statement
     switch(typeOfDel)
@@ -996,17 +1042,17 @@ void wxDbTable::BuildSelectStmt(wxString &pSqlStmt, int typeOfSelect, bool disti
 
     // Add the column list
     int i;
+    wxString tStr;
     for (i = 0; i < noCols; i++)
     {
+        tStr = colDefs[i].ColName;
         // If joining tables, the base table column names must be qualified to avoid ambiguity
-        if (appendFromClause || pDb->Dbms() == dbmsACCESS)
+        if ((appendFromClause || pDb->Dbms() == dbmsACCESS) && !tStr.Find(wxT('.')))
         {
             pSqlStmt += pDb->SQLTableName(queryTableName.c_str());
-//            pSqlStmt += queryTableName;
             pSqlStmt += wxT(".");
         }
         pSqlStmt += pDb->SQLColumnName(colDefs[i].ColName);
-//        pSqlStmt += colDefs[i].ColName;
         if (i + 1 < noCols)
             pSqlStmt += wxT(",");
     }
@@ -1117,7 +1163,8 @@ void wxDbTable::BuildUpdateStmt(wxString &pSqlStmt, int typeOfUpd, const wxStrin
 
     bool firstColumn = TRUE;
 
-    pSqlStmt.Printf(wxT("UPDATE %s SET "), pDb->SQLTableName(tableName.Upper().c_str()));
+    pSqlStmt.Printf(wxT("UPDATE %s SET "),
+                    pDb->SQLTableName(tableName.c_str()).c_str());
 
     // Append a list of columns to be updated
     int i;
@@ -1194,56 +1241,59 @@ void wxDbTable::BuildWhereClause(wxString &pWhereClause, int typeOfWhere,
     wxString colValue;
 
     // Loop through the columns building a where clause as you go
-    int i;
-    for (i = 0; i < noCols; i++)
+    int colNo;
+    for (colNo = 0; colNo < noCols; colNo++)
     {
         // Determine if this column should be included in the WHERE clause
-        if ((typeOfWhere == DB_WHERE_KEYFIELDS && colDefs[i].KeyField) ||
-             (typeOfWhere == DB_WHERE_MATCHING  && (!IsColNull(i))))
+        if ((typeOfWhere == DB_WHERE_KEYFIELDS && colDefs[colNo].KeyField) ||
+             (typeOfWhere == DB_WHERE_MATCHING  && (!IsColNull(colNo))))
         {
             // Skip over timestamp columns
-            if (colDefs[i].SqlCtype == SQL_C_TIMESTAMP)
+            if (colDefs[colNo].SqlCtype == SQL_C_TIMESTAMP)
                 continue;
             // If there is more than 1 column, join them with the keyword "AND"
             if (moreThanOneColumn)
                 pWhereClause += wxT(" AND ");
             else
                 moreThanOneColumn = TRUE;
+
             // Concatenate where phrase for the column
-            if (qualTableName.Length())
+            wxString tStr = colDefs[colNo].ColName;
+
+            if (qualTableName.Length() && !tStr.Find(wxT('.')))
             {
                 pWhereClause += pDb->SQLTableName(qualTableName);
-//                pWhereClause += qualTableName;
                 pWhereClause += wxT(".");
             }
-            pWhereClause += pDb->SQLColumnName(colDefs[i].ColName);
-//            pWhereClause += colDefs[i].ColName;
-            if (useLikeComparison && (colDefs[i].SqlCtype == SQL_C_CHAR))
+            pWhereClause += pDb->SQLColumnName(colDefs[colNo].ColName);
+
+            if (useLikeComparison && (colDefs[colNo].SqlCtype == SQL_C_CHAR))
                 pWhereClause += wxT(" LIKE ");
             else
                 pWhereClause += wxT(" = ");
-            switch(colDefs[i].SqlCtype)
+
+            switch(colDefs[colNo].SqlCtype)
             {
                 case SQL_C_CHAR:
-                    colValue.Printf(wxT("'%s'"), (UCHAR FAR *) colDefs[i].PtrDataObj);
+                    colValue.Printf(wxT("'%s'"), (UCHAR FAR *) colDefs[colNo].PtrDataObj);
                     break;
                 case SQL_C_SSHORT:
-                    colValue.Printf(wxT("%hi"), *((SWORD *) colDefs[i].PtrDataObj));
+                    colValue.Printf(wxT("%hi"), *((SWORD *) colDefs[colNo].PtrDataObj));
                     break;
                 case SQL_C_USHORT:
-                    colValue.Printf(wxT("%hu"), *((UWORD *) colDefs[i].PtrDataObj));
+                    colValue.Printf(wxT("%hu"), *((UWORD *) colDefs[colNo].PtrDataObj));
                     break;
                 case SQL_C_SLONG:
-                    colValue.Printf(wxT("%li"), *((SDWORD *) colDefs[i].PtrDataObj));
+                    colValue.Printf(wxT("%li"), *((SDWORD *) colDefs[colNo].PtrDataObj));
                     break;
                 case SQL_C_ULONG:
-                    colValue.Printf(wxT("%lu"), *((UDWORD *) colDefs[i].PtrDataObj));
+                    colValue.Printf(wxT("%lu"), *((UDWORD *) colDefs[colNo].PtrDataObj));
                     break;
                 case SQL_C_FLOAT:
-                    colValue.Printf(wxT("%.6f"), *((SFLOAT *) colDefs[i].PtrDataObj));
+                    colValue.Printf(wxT("%.6f"), *((SFLOAT *) colDefs[colNo].PtrDataObj));
                     break;
                 case SQL_C_DOUBLE:
-                    colValue.Printf(wxT("%.6f"), *((SDOUBLE *) colDefs[i].PtrDataObj));
+                    colValue.Printf(wxT("%.6f"), *((SDOUBLE *) colDefs[colNo].PtrDataObj));
                     break;
             }
             pWhereClause += colValue;
@@ -1341,7 +1391,8 @@ bool wxDbTable::CreateTable(bool attemptDrop)
     // Build a CREATE TABLE string from the colDefs structure.
     bool needComma = FALSE;
 
-    sqlStmt.Printf(wxT("CREATE TABLE %s ("), pDb->SQLTableName(tableName.c_str()));
+    sqlStmt.Printf(wxT("CREATE TABLE %s ("),
+                   pDb->SQLTableName(tableName.c_str()).c_str());
 
     for (i = 0; i < noCols; i++)
     {
@@ -1375,7 +1426,8 @@ bool wxDbTable::CreateTable(bool attemptDrop)
                 break;
         }
         // For varchars, append the size of the string
-        if (colDefs[i].DbDataType == DB_DATA_TYPE_VARCHAR)// ||
+        if (colDefs[i].DbDataType == DB_DATA_TYPE_VARCHAR &&
+            (pDb->Dbms() != dbmsMY_SQL || pDb->GetTypeInfVarchar().TypeName != _T("text")))// ||
 //            colDefs[i].DbDataType == DB_DATA_TYPE_BLOB)
         {
             wxString s;
@@ -1406,10 +1458,12 @@ bool wxDbTable::CreateTable(bool attemptDrop)
             break;
         }
     }
-    if (j && pDb->Dbms() != dbmsDBASE)  // Found a keyfield
+    if ( j && (pDb->Dbms() != dbmsDBASE)
+        && (pDb->Dbms() != dbmsXBASE_SEQUITER) )  // Found a keyfield
     {
         switch (pDb->Dbms())
         {
+            case dbmsACCESS:
             case dbmsINFORMIX:
             case dbmsSYBASE_ASA:
             case dbmsSYBASE_ASE:
@@ -1446,7 +1500,14 @@ bool wxDbTable::CreateTable(bool attemptDrop)
                 if (j++) // Multi part key, comma separate names
                     sqlStmt += wxT(",");
                 sqlStmt += pDb->SQLColumnName(colDefs[i].ColName);
-//                sqlStmt += colDefs[i].ColName;
+
+                if (pDb->Dbms() == dbmsMY_SQL &&
+                    colDefs[i].DbDataType ==  DB_DATA_TYPE_VARCHAR)
+                {
+                    wxString s;
+                    s.Printf(wxT("(%d)"), colDefs[i].SzDataObj);
+                    sqlStmt += s;
+                }
             }
         }
         sqlStmt += wxT(")");
@@ -1471,7 +1532,7 @@ bool wxDbTable::CreateTable(bool attemptDrop)
 #endif
 
     // Execute the CREATE TABLE statement
-    RETCODE retcode = SQLExecDirect(hstmt, (UCHAR FAR *) sqlStmt.c_str(), SQL_NTS);
+    RETCODE retcode = SQLExecDirect(hstmt, (SQLTCHAR FAR *) sqlStmt.c_str(), SQL_NTS);
     if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO)
     {
         pDb->DispAllErrors(henv, hdbc, hstmt);
@@ -1502,7 +1563,8 @@ bool wxDbTable::DropTable()
 
     wxString sqlStmt;
 
-    sqlStmt.Printf(wxT("DROP TABLE %s"), pDb->SQLTableName(tableName.c_str()));
+    sqlStmt.Printf(wxT("DROP TABLE %s"),
+                   pDb->SQLTableName(tableName.c_str()).c_str());
 
     pDb->WriteSqlLog(sqlStmt);
 
@@ -1510,7 +1572,7 @@ bool wxDbTable::DropTable()
     cout << endl << sqlStmt.c_str() << endl;
 #endif
 
-    RETCODE retcode = SQLExecDirect(hstmt, (UCHAR FAR *) sqlStmt.c_str(), SQL_NTS);
+    RETCODE retcode = SQLExecDirect(hstmt, (SQLTCHAR FAR *) sqlStmt.c_str(), SQL_NTS);
     if (retcode != SQL_SUCCESS)
     {
         // Check for "Base table not found" error and ignore
@@ -1590,11 +1652,14 @@ bool wxDbTable::CreateIndex(const wxString &idxName, bool unique, UWORD noIdxCol
 
                 if (!ok)
                 {
+                    #if 0
+                    // retcode is not used
                     wxODBC_ERRORS retcode;
                     // Oracle returns a DB_ERR_GENERAL_ERROR if the column is already
                     // defined to be NOT NULL, but reportedly MySQL doesn't mind.
                     // This line is just here for debug checking of the value
                     retcode = (wxODBC_ERRORS)pDb->DB_STATUS;
+                    #endif
                 }
             }
             else
@@ -1629,8 +1694,28 @@ bool wxDbTable::CreateIndex(const wxString &idxName, bool unique, UWORD noIdxCol
         sqlStmt += pDb->SQLColumnName(pIdxDefs[i].ColName);
 //        sqlStmt += pIdxDefs[i].ColName;
 
+        // MySQL requires a key length on VARCHAR keys
+        if ( pDb->Dbms() == dbmsMY_SQL )
+        {
+            // Find the details on this column
+            int j;
+            for ( j = 0; j < noCols; ++j )
+            {
+                if ( wxStrcmp( pIdxDefs[i].ColName, colDefs[j].ColName ) == 0 )
+                {
+                    break;
+                }
+            }
+            if ( colDefs[j].DbDataType ==  DB_DATA_TYPE_VARCHAR)
+            {
+                wxString s;
+                s.Printf(wxT("(%d)"), colDefs[i].SzDataObj);
+                sqlStmt += s;
+            }
+        }
+        
         // Postgres and SQL Server 7 do not support the ASC/DESC keywords for index columns
-        if (!((pDb->Dbms() == dbmsMS_SQL_SERVER) && (strncmp(pDb->dbInf.dbmsVer,"07",2)==0)) &&
+        if (!((pDb->Dbms() == dbmsMS_SQL_SERVER) && (wxStrncmp(pDb->dbInf.dbmsVer,_T("07"),2)==0)) &&
             !(pDb->Dbms() == dbmsPOSTGRES))
         {
             if (pIdxDefs[i].Ascending)
@@ -1639,7 +1724,7 @@ bool wxDbTable::CreateIndex(const wxString &idxName, bool unique, UWORD noIdxCol
                 sqlStmt += wxT(" DESC");
         }
         else
-            wxASSERT_MSG(pIdxDefs[i].Ascending, "Datasource does not support DESCending index columns");
+            wxASSERT_MSG(pIdxDefs[i].Ascending, _T("Datasource does not support DESCending index columns"));
 
         if ((i + 1) < noIdxCols)
             sqlStmt += wxT(",");
@@ -1655,7 +1740,7 @@ bool wxDbTable::CreateIndex(const wxString &idxName, bool unique, UWORD noIdxCol
 #endif
 
     // Execute the CREATE INDEX statement
-    if (SQLExecDirect(hstmt, (UCHAR FAR *) sqlStmt.c_str(), SQL_NTS) != SQL_SUCCESS)
+    if (SQLExecDirect(hstmt, (SQLTCHAR FAR *) sqlStmt.c_str(), SQL_NTS) != SQL_SUCCESS)
     {
         pDb->DispAllErrors(henv, hdbc, hstmt);
         pDb->RollbackTrans();
@@ -1687,12 +1772,18 @@ bool wxDbTable::DropIndex(const wxString &idxName)
 
     if (pDb->Dbms() == dbmsACCESS || pDb->Dbms() == dbmsMY_SQL ||
         pDb->Dbms() == dbmsDBASE /*|| Paradox needs this syntax too when we add support*/)
-        sqlStmt.Printf(wxT("DROP INDEX %s ON %s"),pDb->SQLTableName(idxName.c_str()), pDb->SQLTableName(tableName.c_str()));
+        sqlStmt.Printf(wxT("DROP INDEX %s ON %s"),
+                       pDb->SQLTableName(idxName.c_str()).c_str(),
+                       pDb->SQLTableName(tableName.c_str()).c_str());
     else if ((pDb->Dbms() == dbmsMS_SQL_SERVER) ||
-             (pDb->Dbms() == dbmsSYBASE_ASE))
-        sqlStmt.Printf(wxT("DROP INDEX %s.%s"), pDb->SQLTableName(tableName.c_str()), pDb->SQLTableName(idxName.c_str()));
+             (pDb->Dbms() == dbmsSYBASE_ASE) ||
+             (pDb->Dbms() == dbmsXBASE_SEQUITER))
+        sqlStmt.Printf(wxT("DROP INDEX %s.%s"),
+                       pDb->SQLTableName(tableName.c_str()).c_str(),
+                       pDb->SQLTableName(idxName.c_str()).c_str());
     else
-        sqlStmt.Printf(wxT("DROP INDEX %s"),pDb->SQLTableName(idxName.c_str()));
+        sqlStmt.Printf(wxT("DROP INDEX %s"),
+                       pDb->SQLTableName(idxName.c_str()).c_str());
 
     pDb->WriteSqlLog(sqlStmt);
 
@@ -1700,7 +1791,7 @@ bool wxDbTable::DropIndex(const wxString &idxName)
     cout << endl << sqlStmt.c_str() << endl;
 #endif
 
-    if (SQLExecDirect(hstmt, (UCHAR FAR *) sqlStmt.c_str(), SQL_NTS) != SQL_SUCCESS)
+    if (SQLExecDirect(hstmt, (SQLTCHAR FAR *) sqlStmt.c_str(), SQL_NTS) != SQL_SUCCESS)
     {
         // Check for "Index not found" error and ignore
         pDb->GetNextError(henv, hdbc, hstmt);
@@ -1783,7 +1874,8 @@ int wxDbTable::Insert(void)
     // Insert the record by executing the already prepared insert statement
     RETCODE retcode;
     retcode=SQLExecute(hstmtInsert);
-    if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO)
+    if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO &&
+        retcode != SQL_NEED_DATA)
     {
         // Check to see if integrity constraint was violated
         pDb->GetNextError(henv, hdbc, hstmtInsert);
@@ -1796,6 +1888,31 @@ int wxDbTable::Insert(void)
             return(DB_FAILURE);
         }
     }
+    if (retcode == SQL_NEED_DATA)
+    {
+        PTR pParmID;
+        retcode = SQLParamData(hstmtInsert, &pParmID);
+        while (retcode == SQL_NEED_DATA)
+        {
+            // Find the parameter
+            int i;
+            for (i=0; i < noCols; i++)
+            {
+                if (colDefs[i].PtrDataObj == pParmID)
+                {
+                    // We found it.  Store the parameter.
+                    retcode = SQLPutData(hstmtInsert, pParmID, colDefs[i].SzDataObj);
+                    if (retcode != SQL_SUCCESS)
+                    {
+                        pDb->DispNextError();
+                        pDb->DispAllErrors(henv, hdbc, hstmtInsert);
+                        return(DB_FAILURE);
+                    }
+                    break;
+                }
+            }
+        }
+    }
 
     // Record inserted into the datasource successfully
     return(DB_SUCCESS);
@@ -2094,6 +2211,9 @@ void wxDbTable::SetColDefs(UWORD index, const wxString &fieldName, int dataType,
                            SWORD cType, int size, bool keyField, bool upd,
                            bool insAllow, bool derivedCol)
 {
+    wxASSERT_MSG( index < noCols,
+                  _T("Specified column index exceeds the maximum number of columns for this table.") );
+
     if (!colDefs)  // May happen if the database connection fails
         return;
 
@@ -2273,7 +2393,7 @@ ULONG wxDbTable::Count(const wxString &args)
     }
 
     // Execute the SQL statement
-    if (SQLExecDirect(*hstmtCount, (UCHAR FAR *) sqlStmt.c_str(), SQL_NTS) != SQL_SUCCESS)
+    if (SQLExecDirect(*hstmtCount, (SQLTCHAR FAR *) sqlStmt.c_str(), SQL_NTS) != SQL_SUCCESS)
     {
         pDb->DispAllErrors(henv, hdbc, *hstmtCount);
         return(0);
@@ -2313,8 +2433,8 @@ bool wxDbTable::Refresh(void)
     hstmt = hstmtInternal;
 #if wxODBC_BACKWARD_COMPATABILITY
     // Save the where and order by clauses
-    char *saveWhere = where;
-    char *saveOrderBy = orderBy;
+    wxChar *saveWhere = where;
+    wxChar *saveOrderBy = orderBy;
 #else
     wxString saveWhere = where;
     wxString saveOrderBy = orderBy;
@@ -2378,7 +2498,10 @@ bool wxDbTable::SetColNull(UWORD colNo, bool set)
     {
         colDefs[colNo].Null = set;
         if (set)  // Blank out the values in the member variable
-            ClearMemberVar(colNo,FALSE);  // Must call with FALSE, or infinite recursion will happen
+        {
+           colDefs[colNo].CbValue = SQL_NULL_DATA; // SF PATCH#766404
+           ClearMemberVar(colNo,FALSE);  // Must call with FALSE, or infinite recursion will happen
+        }
         return(TRUE);
     }
     else
@@ -2390,18 +2513,21 @@ bool wxDbTable::SetColNull(UWORD colNo, bool set)
 /********** wxDbTable::SetColNull() **********/
 bool wxDbTable::SetColNull(const wxString &colName, bool set)
 {
-    int i;
-    for (i = 0; i < noCols; i++)
+    int colNo;
+    for (colNo = 0; colNo < noCols; colNo++)
     {
-        if (!wxStricmp(colName, colDefs[i].ColName))
+        if (!wxStricmp(colName, colDefs[colNo].ColName))
             break;
     }
 
-    if (i < noCols)
+    if (colNo < noCols)
     {
-        colDefs[i].Null = set;
+        colDefs[colNo].Null = set;
         if (set)  // Blank out the values in the member variable
-            ClearMemberVar(i,FALSE);  // Must call with FALSE, or infinite recursion will happen
+        {
+           colDefs[colNo].CbValue = SQL_NULL_DATA;  // SF PATCH#766404
+           ClearMemberVar(colNo,FALSE);  // Must call with FALSE, or infinite recursion will happen
+        }
         return(TRUE);
     }
     else
@@ -2497,53 +2623,53 @@ void wxDbTable::SetRowMode(const rowmode_t rowmode)
             SetCursor(hstmtDefault);
             break;
         default:
-            assert(0);
+           wxASSERT(0);
     }
 }  // wxDbTable::SetRowMode()
 
 
-wxVariant wxDbTable::GetCol(const int col) const
+wxVariant wxDbTable::GetCol(const int colNo) const
 {
     wxVariant val;
-    if ((col < noCols) && (!IsColNull(col)))
+    if ((colNo < noCols) && (!IsColNull(colNo)))
     {
-        switch (colDefs[col].SqlCtype)
+        switch (colDefs[colNo].SqlCtype)
         {
             case SQL_CHAR:
             case SQL_VARCHAR:
-                val = (char *)(colDefs[col].PtrDataObj);
+                val = (wxChar *)(colDefs[colNo].PtrDataObj);
                 break;
             case SQL_C_LONG:
             case SQL_C_SLONG:
-                val = *(long *)(colDefs[col].PtrDataObj);
+                val = *(long *)(colDefs[colNo].PtrDataObj);
                 break;
             case SQL_C_SHORT:
             case SQL_C_SSHORT:
-                val = (long int )(*(short *)(colDefs[col].PtrDataObj));
+                val = (long int )(*(short *)(colDefs[colNo].PtrDataObj));
                 break;
             case SQL_C_ULONG:
-                val = (long)(*(unsigned long *)(colDefs[col].PtrDataObj));
+                val = (long)(*(unsigned long *)(colDefs[colNo].PtrDataObj));
                 break;
             case SQL_C_TINYINT:
-                val = (long)(*(char *)(colDefs[col].PtrDataObj));
+                val = (long)(*(wxChar *)(colDefs[colNo].PtrDataObj));
                 break;
             case SQL_C_UTINYINT:
-                val = (long)(*(unsigned char *)(colDefs[col].PtrDataObj));
+                val = (long)(*(wxChar *)(colDefs[colNo].PtrDataObj));
                 break;
             case SQL_C_USHORT:
-                val = (long)(*(UWORD *)(colDefs[col].PtrDataObj));
+                val = (long)(*(UWORD *)(colDefs[colNo].PtrDataObj));
                 break;
             case SQL_C_DATE:
-                val = (DATE_STRUCT *)(colDefs[col].PtrDataObj);
+                val = (DATE_STRUCT *)(colDefs[colNo].PtrDataObj);
                 break;
             case SQL_C_TIME:
-                val = (TIME_STRUCT *)(colDefs[col].PtrDataObj);
+                val = (TIME_STRUCT *)(colDefs[colNo].PtrDataObj);
                 break;
             case SQL_C_TIMESTAMP:
-                val = (TIMESTAMP_STRUCT *)(colDefs[col].PtrDataObj);
+                val = (TIMESTAMP_STRUCT *)(colDefs[colNo].PtrDataObj);
                 break;
             case SQL_C_DOUBLE:
-                val = *(double *)(colDefs[col].PtrDataObj);
+                val = *(double *)(colDefs[colNo].PtrDataObj);
                 break;
             default:
                 assert(0);
@@ -2553,65 +2679,57 @@ wxVariant wxDbTable::GetCol(const int col) const
 }  // wxDbTable::GetCol()
 
 
-void csstrncpyt(char *s, const char *t, int n)
-{
-    while ((*s++ = *t++) && --n)
-    {};
-
-    *s = '\0';
-}
-
-void wxDbTable::SetCol(const int col, const wxVariant val)
+void wxDbTable::SetCol(const int colNo, const wxVariant val)
 {
     //FIXME: Add proper wxDateTime support to wxVariant..
     wxDateTime dateval;
 
-    SetColNull(col, val.IsNull());
+    SetColNull(colNo, val.IsNull());
 
     if (!val.IsNull())
     {
-        if ((colDefs[col].SqlCtype == SQL_C_DATE)
-            || (colDefs[col].SqlCtype == SQL_C_TIME)
-            || (colDefs[col].SqlCtype == SQL_C_TIMESTAMP))
+        if ((colDefs[colNo].SqlCtype == SQL_C_DATE)
+            || (colDefs[colNo].SqlCtype == SQL_C_TIME)
+            || (colDefs[colNo].SqlCtype == SQL_C_TIMESTAMP))
         {
             //Returns null if invalid!
             if (!dateval.ParseDate(val.GetString()))
-                SetColNull(col,TRUE);
+                SetColNull(colNo, TRUE);
         }
 
-        switch (colDefs[col].SqlCtype)
+        switch (colDefs[colNo].SqlCtype)
         {
             case SQL_CHAR:
             case SQL_VARCHAR:
-                csstrncpyt((char *)(colDefs[col].PtrDataObj),
+                csstrncpyt((wxChar *)(colDefs[colNo].PtrDataObj),
                            val.GetString().c_str(),
-                           colDefs[col].SzDataObj-1);
+                           colDefs[colNo].SzDataObj-1);
                 break;
             case SQL_C_LONG:
             case SQL_C_SLONG:
-                *(long *)(colDefs[col].PtrDataObj) = val;
+                *(long *)(colDefs[colNo].PtrDataObj) = val;
                 break;
             case SQL_C_SHORT:
             case SQL_C_SSHORT:
-                *(short *)(colDefs[col].PtrDataObj) = val.GetLong();
+                *(short *)(colDefs[colNo].PtrDataObj) = val.GetLong();
                 break;
             case SQL_C_ULONG:
-                *(unsigned long *)(colDefs[col].PtrDataObj) = val.GetLong();
+                *(unsigned long *)(colDefs[colNo].PtrDataObj) = val.GetLong();
                 break;
             case SQL_C_TINYINT:
-                *(char *)(colDefs[col].PtrDataObj) = val.GetChar();
+                *(wxChar *)(colDefs[colNo].PtrDataObj) = val.GetChar();
                 break;
             case SQL_C_UTINYINT:
-                *(unsigned char *)(colDefs[col].PtrDataObj) = val.GetChar();
+                *(wxChar *)(colDefs[colNo].PtrDataObj) = val.GetChar();
                 break;
             case SQL_C_USHORT:
-                *(unsigned short *)(colDefs[col].PtrDataObj) = val.GetLong();
+                *(unsigned short *)(colDefs[colNo].PtrDataObj) = val.GetLong();
                 break;
             //FIXME: Add proper wxDateTime support to wxVariant..
             case SQL_C_DATE:
                 {
                     DATE_STRUCT *dataptr =
-                        (DATE_STRUCT *)colDefs[col].PtrDataObj;
+                        (DATE_STRUCT *)colDefs[colNo].PtrDataObj;
 
                     dataptr->year   = dateval.GetYear();
                     dataptr->month  = dateval.GetMonth()+1;
@@ -2621,7 +2739,7 @@ void wxDbTable::SetCol(const int col, const wxVariant val)
             case SQL_C_TIME:
                 {
                     TIME_STRUCT *dataptr =
-                        (TIME_STRUCT *)colDefs[col].PtrDataObj;
+                        (TIME_STRUCT *)colDefs[colNo].PtrDataObj;
 
                     dataptr->hour   = dateval.GetHour();
                     dataptr->minute = dateval.GetMinute();
@@ -2631,7 +2749,7 @@ void wxDbTable::SetCol(const int col, const wxVariant val)
             case SQL_C_TIMESTAMP:
                 {
                     TIMESTAMP_STRUCT *dataptr =
-                        (TIMESTAMP_STRUCT *)colDefs[col].PtrDataObj;
+                        (TIMESTAMP_STRUCT *)colDefs[colNo].PtrDataObj;
                     dataptr->year   = dateval.GetYear();
                     dataptr->month  = dateval.GetMonth()+1;
                     dataptr->day    = dateval.GetDay();
@@ -2642,7 +2760,7 @@ void wxDbTable::SetCol(const int col, const wxVariant val)
                 }
                 break;
             case SQL_C_DOUBLE:
-                *(double *)(colDefs[col].PtrDataObj) = val;
+                *(double *)(colDefs[colNo].PtrDataObj) = val;
                 break;
             default:
                 assert(0);
@@ -2654,10 +2772,10 @@ void wxDbTable::SetCol(const int col, const wxVariant val)
 GenericKey wxDbTable::GetKey()
 {
     void *blk;
-    char *blkptr;
+    wxChar *blkptr;
 
     blk = malloc(m_keysize);
-    blkptr = (char *) blk;
+    blkptr = (wxChar *) blk;
 
     int i;
     for (i=0; i < noCols; i++)
@@ -2678,11 +2796,11 @@ GenericKey wxDbTable::GetKey()
 
 void wxDbTable::SetKey(const GenericKey& k)
 {
-    void *blk;
-    char *blkptr;
+    void    *blk;
+    wxChar  *blkptr;
 
     blk = k.GetBlk();
-    blkptr = (char *)blk;
+    blkptr = (wxChar *)blk;
 
     int i;
     for (i=0; i < noCols; i++)