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1715 lines
40 KiB
1715 lines
40 KiB
/*++
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Copyright (c) 1995 Microsoft Corporation
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Module Name :
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odbcconn.cxx
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Abstract:
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This module defines member functions for ODBC_CONNECTION object.
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Author:
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Murali R. Krishnan ( MuraliK ) 16-Feb-1995
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Environment:
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User Mode - Win32.
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Project:
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Internet Services Common DLL
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Functions Exported:
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ODBC_PARAMETER::CopyValue( IN LPCWSTR pwszValue);
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ODBC_PARAMETER::Bind( IN HSTMT hstmt);
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ODBC_STATEMENT::~ODBC_STATEMENT()
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ODBC_STATEMENT::PrepareStatement( IN LPCSTR pszStatement)
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ODBC_STATEMENT::PrepareStatement( IN LPCWSTR pwszStatement)
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ODBC_STATEMENT::BindParameter( IN PODBC_PARAMETER pOdbcParam)
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ODBC_STATEMENT::ExecuteStatement( VOID)
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ODBC_STATEMENT::ExecDirect( IN LPCSTR pwszSqlCommand, IN DWORD cch)
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ODBC_STATEMENT::ExecDirect( IN LPCWSTR pwszSqlCommand, IN DWORD cch)
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ODBC_STATEMENT::QueryColNames( OUT STR * * apstrCols,
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OUT DWORD * cCols,
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IN DWORD cchMaxFieldSize = 0 );
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ODBC_STATEMENT::QueryValuesAsStr( OUT STR * * apstrValues,
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OUT DWORD * * apcbValues,
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OUT BOOL * pfLast );
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ODBC_CONNECTION::~ODBC_CONNECTION();
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ODBC_CONNECTION::Open();
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ODBC_CONNECTION::Close();
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ODBC_CONNECTION::GetLastErrorCode();
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ODBC_CONNECTION::AllocStatement();
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Revision History:
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--*/
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/************************************************************
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* Include Headers
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************************************************************/
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# include <tcpdllp.hxx> // for debugging macros & Unicode functions
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# include "odbcconn.hxx"
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//
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// Since the ODBC does not support UNICODE APIs, we convert unicode to ANSI
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// to call the APIs. This will have to go away once we find some other
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// better way to do manage the same.
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//
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//
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// Constants for display widths
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//
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#define MAX_NUM_PRECISION 15
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//
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// Constant for all non string and non binary data. 40 is chosen to account
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// for things such as Oracle's numeric types, which can have up to 38 digits
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// of precision
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//
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#define MAX_NONCHAR_DATA_LEN 40
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//
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// If no default maximum field size is specified, then use this value
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// as the maximum
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//
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#define DEFAULT_MAX_FIELD_SIZE 8192
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/************************************************************
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* Local Functions
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************************************************************/
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static inline VOID
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CheckAndPrintErrorMessage( IN ODBC_CONNECTION * poc,
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IN RETCODE rc)
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{
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# if DBG
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if ( !ODBC_CONNECTION::Success( rc)) {
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STR str;
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poc->GetLastErrorText( &str, NULL, rc );
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DBGPRINTF( ( DBG_CONTEXT,
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"ODBC Error Code( %d). Text: %s\n",
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rc,
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str.QueryStr() ));
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}
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# endif // DBG
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return;
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} // CheckAndPrintErrorMessage()
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static inline VOID
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CheckAndPrintErrorMessage( IN ODBC_STATEMENT * pos,
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IN RETCODE rc)
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{
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# if DBG
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if ( !ODBC_CONNECTION::Success( rc)) {
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STR str;
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pos->GetLastErrorText( &str );
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DBGPRINTF( ( DBG_CONTEXT,
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"ODBC Error Code( %d). Text: %s\n",
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rc,
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str.QueryStr() ));
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}
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# endif // DBG
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return;
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} // CheckAndPrintErrorMessage()
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//
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// 64BIT
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// Not 64 Bit Compatible
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//
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// SQLPOINTER is treated here as a 32 bit value. To make this work for
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// sundown this needs to be reconciled.
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//
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# if 0
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static VOID
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PrintMultiString( IN char * pszMsg, IN DWORD cbLen, IN char * pmsz)
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{
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DBGPRINTF( ( DBG_CONTEXT,
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"Values of %s. %d bytes.\n", pszMsg, cbLen));
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for( char * psz = pmsz; *psz != '\0'; psz += (strlen( psz) + 1)) {
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DBGPRINTF( ( DBG_CONTEXT, "%s\n", psz));
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}
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return;
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} // PrintMultiString()
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static VOID
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AuxOdbcFunctions( IN HENV henv, IN HDBC hdbc)
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/*++
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Function useful in walking throug a few additional ODBC functions
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to find out the ODBC setup information.
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Not to be part of the shipped code. Useful for development purposes.
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- MuraliK
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--*/
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{
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RETCODE rc;
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//
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// Set the trace file to a standard file.
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//
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rc = pSQLSetConnectOption( hdbc, SQL_OPT_TRACE, SQL_OPT_TRACE_ON);
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DBG_ASSERT( ODBC_CONNECTION::Success( rc));
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rc = pSQLSetConnectOption( hdbc, SQL_OPT_TRACEFILE,
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(unsigned long ) //64BIT
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"%systemroot%\\system32\\gophsql.log");
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DBG_ASSERT( ODBC_CONNECTION::Success( rc));
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UCHAR szDriverDesc[ 300];
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UCHAR szDriverAttrib[ 300];
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SWORD cbDD = 300;
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SWORD cbDA = 300;
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SWORD cbDDCur = 0;
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SWORD cbDACur = 0;
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szDriverDesc[0] = szDriverAttrib[0] = '\0';
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rc = pSQLDrivers( henv, SQL_FETCH_FIRST,
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szDriverDesc, cbDD, &cbDDCur,
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szDriverAttrib, cbDA, &cbDACur);
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DBG_ASSERT( ODBC_CONNECTION::Success( rc));
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DBGPRINTF( ( DBG_CONTEXT,
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" SQLDrivers( %08x) ==> RetCode = %d."
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" Driver Desc. = ( %d bytes) %s. ",
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henv, rc, cbDDCur, szDriverDesc));
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PrintMultiString( " Driver Attributes", cbDACur, (char *) szDriverAttrib);
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szDriverDesc[0] = szDriverAttrib[0] = '\0';
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cbDDCur = cbDACur = 0;
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rc = pSQLDataSources( henv, SQL_FETCH_FIRST,
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szDriverDesc, cbDD, &cbDDCur,
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szDriverAttrib, cbDA, &cbDACur);
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DBG_ASSERT( ODBC_CONNECTION::Success( rc));
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DBGPRINTF( ( DBG_CONTEXT,
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" SQLDataSources( %08x) ==> RetCode = %d."
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" Data Sources. = ( %d bytes) %s. ",
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henv, rc, cbDDCur, szDriverDesc));
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PrintMultiString( " Data Source Description", cbDACur,
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(char *) szDriverAttrib);
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return;
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} // AuxOdbcFunctions()
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# endif // 0
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/************************************************************
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* Member Functions of ODBC_PARAMETER
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************************************************************/
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BOOL
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ODBC_PARAMETER::CopyValue( IN LPCWSTR pwszValue)
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/*++
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Description:
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This function copies the given Unicode string as the value into
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current parameter marker to be used for future insertion.
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Arguments:
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pwszValue pointer to null-terminated string containing Unicode value to
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be copied into the parameter marker.
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Returns:
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TRUE on success and FALSE if there is any error.
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Note:
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Since ODBC does not support Unicode directly right now, we convert
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string value to be ANSI before copying the value over.
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--*/
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{
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BOOL fReturn = FALSE;
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CHAR * pszValue = ConvertUnicodeToAnsi( pwszValue, NULL, 0 );
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//
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// If successful then Copy ASCII value to buffer in the parameter block.
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//
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if ( pszValue != NULL) {
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fReturn = this->CopyValue( pszValue);
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TCP_FREE( pszValue);
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}
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return ( fReturn);
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} // ODBC_PARAMETER::CopyValue()
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BOOL
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ODBC_PARAMETER::CopyValue( IN LPSYSTEMTIME lpst)
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/*++
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Description:
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This function copies the given system time into the ODBC timestamp
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structure for the current parameter marker to be used for
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future insertion.
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Arguments:
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lpSystemTime pointer to System Time structure containing current time.
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Returns:
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TRUE on success and FALSE if there is any error.
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--*/
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{
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TIMESTAMP_STRUCT * ptsOdbc;
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DBG_ASSERT( lpst != NULL);
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DBG_ASSERT( m_CType == SQL_C_TIMESTAMP);
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DBG_ASSERT( m_SqlType == SQL_TIMESTAMP);
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DBG_ASSERT( m_cbValueMax >= sizeof(TIMESTAMP_STRUCT));
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ptsOdbc = (TIMESTAMP_STRUCT * ) m_pValue;
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DBG_ASSERT( m_pValue != NULL);
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//
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// Copy the individual fields over properly
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// The types used in ODBC/Win32 are different
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// So do a type specific copy of the values.
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//
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ptsOdbc->year = (SWORD ) lpst->wYear;
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ptsOdbc->month = (UWORD ) lpst->wMonth;
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ptsOdbc->day = (UWORD ) lpst->wDay;
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ptsOdbc->hour = (UWORD ) lpst->wHour;
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ptsOdbc->minute = (UWORD ) lpst->wMinute;
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ptsOdbc->second = (UWORD ) lpst->wSecond;
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ptsOdbc->fraction = (UDWORD ) lpst->wMilliseconds;
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return ( TRUE);
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} // ODBC_PARAMETER::CopyValue()
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RETCODE
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ODBC_PARAMETER::Bind( IN HSTMT hStmt)
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/*++
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Description:
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This functions binds the data about the parameter marker 'this'
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( this object) represents to the statement provided.
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Arguments:
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hStmt HANDLE for the statement to which this parameter
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is to be bound.
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Returns:
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RETCODE value returned by SQLBindParamater().
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--*/
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{
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RETCODE rc;
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DBG_ASSERT( hStmt != SQL_NULL_HSTMT);
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rc = pSQLBindParameter( hStmt, // statement
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QueryParamNumber(),
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QueryParamType(),
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QueryCType(),
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QuerySqlType(),
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QueryPrecision(),
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QueryScale(),
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QueryValue(),
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QueryMaxCbValue(),
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&(QueryCbValueRef())
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);
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return ( rc);
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} // ODBC_STATEMENT::BindParameter()
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# if DBG
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VOID
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ODBC_PARAMETER::Print( VOID) const
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{
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DBGPRINTF( ( DBG_CONTEXT,
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"Printing ODBC_PARAMETER ( %08x).\n"
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" Num=%u; Type=%d; CType=%d; SqlType=%d; Prec=%u; Scale=%d;"
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" CbMax=%d; Cb=%d.\n",
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this,
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QueryParamNumber(),
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QueryParamType(),
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QueryCType(),
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QuerySqlType(),
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QueryPrecision(),
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QueryScale(),
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QueryMaxCbValue(),
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QueryCbValue()));
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switch ( QuerySqlType()) {
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case SQL_INTEGER:
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{
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DWORD dwValue = *(DWORD *) QueryValue();
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DBGPRINTF( ( DBG_CONTEXT, " Integer Value = %u\n", dwValue));
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break;
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}
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case SQL_CHAR:
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{
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LPCSTR pszValue = (LPCSTR ) QueryValue();
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DBGPRINTF( ( DBG_CONTEXT, " String Value( %08x) = %s\n",
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pszValue, pszValue));
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break;
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}
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default:
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{
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DBGPRINTF( ( DBG_CONTEXT, " Type=%d. Unknown value at %08x\n",
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QuerySqlType(), QueryValue()));
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break;
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}
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} // switch
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return;
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} // ODBC_PARAMETER::Print()
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# endif // DBG
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/************************************************************
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* ODBC_STATEMENT member functions
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************************************************************/
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ODBC_STATEMENT::~ODBC_STATEMENT( VOID)
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{
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//
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// Free the statement handle
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//
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if ( m_hStmt != SQL_NULL_HSTMT) {
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m_rc = pSQLFreeStmt( m_hStmt, SQL_DROP);
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m_hStmt = SQL_NULL_HSTMT;
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// Ignore the error code here.
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DBG_ASSERT( ODBC_CONNECTION::Success( m_rc));
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IF_DEBUG( ODBC) {
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DBGPRINTF( ( DBG_CONTEXT,
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"SqlFreeStmt() return code %d.\n",
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m_rc));
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CheckAndPrintErrorMessage( this, m_rc);
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}
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}
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FreeColumnMemory();
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} // ODBC_STATEMENT::~ODBC_STATEMENT()
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BOOL
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ODBC_STATEMENT::ExecDirect(
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IN LPCSTR pszSqlCommand,
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IN DWORD cchSqlCommand)
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{
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BOOL fReturn;
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IF_DEBUG( ODBC) {
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DBGPRINTF( ( DBG_CONTEXT,
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" Executing the SQL command (%d bytes) %s.\n",
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cchSqlCommand * sizeof( CHAR),
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pszSqlCommand));
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}
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//
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// SQLExecDirect only likes Unsigned chars !
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//
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m_rc = pSQLExecDirect( m_hStmt, (UCHAR FAR *) pszSqlCommand, cchSqlCommand);
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fReturn = ODBC_CONNECTION::Success( m_rc);
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IF_DEBUG( ODBC) {
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DBGPRINTF( ( DBG_CONTEXT,
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" SQLExecDirect() returns code %d\n",
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m_rc));
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CheckAndPrintErrorMessage( this, m_rc);
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}
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return ( fReturn);
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} // ODBC_STATEMENT::ExecDirect()
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BOOL
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ODBC_STATEMENT::ExecDirect(
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IN LPCWSTR pszSqlCommand,
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IN DWORD cchSqlCommand)
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{
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BOOL fReturn = FALSE;
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char * pszCommand;
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if ( ( pszCommand = ConvertUnicodeToAnsi( pszSqlCommand, NULL, 0))
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!= NULL ) {
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fReturn = ExecDirect( pszCommand, strlen( pszCommand));
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TCP_FREE( pszCommand);
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}
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return ( fReturn);
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} // ODBC_STATEMENT::ExecDirect()
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BOOL
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ODBC_STATEMENT::PrepareStatement(IN LPCSTR pszStatement)
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/*++
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This function prepares the SQL statement for future execution.
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Arguments:
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pszStatement pointer to null terminated string containing the
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statement.
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Returns:
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TRUE on success and FALSE if there is any failure.
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--*/
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{
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BOOL fReturn;
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DBG_ASSERT( QueryErrorCode() == SQL_SUCCESS && pszStatement != NULL);
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m_rc = pSQLPrepare( m_hStmt, (UCHAR FAR *) pszStatement, SQL_NTS);
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IF_DEBUG( ODBC) {
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DBGPRINTF( ( DBG_CONTEXT,
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" SQLPrepare( %s) returns ErrorCode = %d.\n",
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pszStatement, m_rc));
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CheckAndPrintErrorMessage( this, m_rc);
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}
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return ( m_fPreparedStmt = ODBC_CONNECTION::Success( m_rc));
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} // ODBC_STATEMENT::PrepareStatment()
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BOOL
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ODBC_STATEMENT::PrepareStatement( IN LPCWSTR pwszCommand)
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/*++
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This function prepares an ODBC statement for execution.
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Since ODBC does not support UNICODE, we convert the statement into ANSI
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before calling the APIs.
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Arguments:
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pwszCommand pointer to null-terminated string containing the
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statement to be prepared.
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Returns:
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TRUE on success and FALSE if there is any failure.
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--*/
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{
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BOOL fReturn = FALSE;
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CHAR * pszCommand = NULL;
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DBG_ASSERT( pwszCommand != NULL);
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pszCommand = ConvertUnicodeToAnsi( pwszCommand, NULL, 0);
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if ( pszCommand != NULL) {
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fReturn = PrepareStatement( pszCommand);
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TCP_FREE( pszCommand);
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} // pszCommand != NULL
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return ( fReturn);
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} // ODBC_STATEMENT::PrepareStatement()
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BOOL
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ODBC_STATEMENT::BindParameter( IN PODBC_PARAMETER pOdbcParameter)
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{
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DBG_ASSERT( ODBC_CONNECTION::Success( m_rc) && pOdbcParameter != NULL);
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m_rc = pOdbcParameter->Bind( m_hStmt);
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IF_DEBUG( ODBC) {
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CheckAndPrintErrorMessage( this, m_rc);
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}
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return ( ODBC_CONNECTION::Success( m_rc));
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} // ODBC_STATEMENT::BindParameter()
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BOOL
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ODBC_STATEMENT::ExecuteStatement( VOID)
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/*++
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This function executes a prepared ODBC statement. At the end of execution,
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the transaction is also committed to ensure that the record is automatically
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written to the database.
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Arguments:
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None
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Returns:
|
|
TRUE on success and FALSE if there is any failure.
|
|
|
|
--*/
|
|
{
|
|
DBG_ASSERT( m_fPreparedStmt != FALSE);
|
|
|
|
if ( !ODBC_CONNECTION::Success( QueryErrorCode()) ) {
|
|
|
|
DBGPRINTF(( DBG_CONTEXT,
|
|
"!!WARNING!! - Attempting to use Invalid ODBC Connection!\n" ));
|
|
}
|
|
|
|
m_rc = pSQLExecute( m_hStmt);
|
|
|
|
IF_DEBUG( ODBC) {
|
|
|
|
CheckAndPrintErrorMessage( this, m_rc);
|
|
}
|
|
|
|
return ( ODBC_CONNECTION::Success( m_rc));
|
|
} // ODBC_STATEMENT::ExecuteStatement()
|
|
|
|
BOOL
|
|
ODBC_STATEMENT::QueryRowCount(
|
|
OUT DWORD * pcRows
|
|
)
|
|
/*++
|
|
|
|
Calls SQLRowCount on the current result set.
|
|
|
|
NOTE: Not all database implementations support this!!
|
|
|
|
Arguments:
|
|
|
|
pcRows - Receives count of rows
|
|
|
|
Returns:
|
|
TRUE on success and FALSE if there are any failures.
|
|
|
|
Note:
|
|
|
|
--*/
|
|
{
|
|
m_rc = pSQLRowCount( m_hStmt,
|
|
(SDWORD *) pcRows );
|
|
|
|
return ( ODBC_CONNECTION::Success( m_rc));
|
|
}
|
|
|
|
|
|
BOOL
|
|
ODBC_STATEMENT::QueryColNames(
|
|
STR * * pastrCols,
|
|
DWORD * cCols,
|
|
DWORD cchMaxFieldSize,
|
|
BOOL * pfHaveResultSet
|
|
)
|
|
/*++
|
|
|
|
This method returns the list of column names from the result table
|
|
|
|
Arguments:
|
|
|
|
pastrCols - Receives an array of STRs containing the column names
|
|
cCols - Count of columns returned (zero for no result set)
|
|
cchMaxFieldSize - Maximum buffer size to allocate for any data fields,
|
|
zero means use the default value.
|
|
pfHaveResultSet - Set to TRUE if the current query was a SELECT and thus has
|
|
rows that can be enumerated
|
|
|
|
Returns:
|
|
TRUE on success and FALSE if there are any failures.
|
|
|
|
Note:
|
|
|
|
--*/
|
|
{
|
|
SWORD nresultcols;
|
|
SWORD i;
|
|
CHAR achColName[64];
|
|
SWORD cchColName;
|
|
SWORD ColType;
|
|
DWORD cchColLength;
|
|
SWORD scale;
|
|
SWORD nullable;
|
|
|
|
*pastrCols = NULL;
|
|
*cCols = 0;
|
|
*pfHaveResultSet = TRUE;
|
|
|
|
//
|
|
// Return the old binding info if we already have it
|
|
//
|
|
|
|
if ( m_astrColNames )
|
|
{
|
|
*pastrCols = m_astrColNames;
|
|
*cCols = m_cCols;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
//
|
|
// Provide a default maximum field size if none was specified
|
|
//
|
|
|
|
if ( !cchMaxFieldSize )
|
|
cchMaxFieldSize = DEFAULT_MAX_FIELD_SIZE;
|
|
|
|
//
|
|
// See what kind of statement it was. If there are no result
|
|
// columns, the statement is not a SELECT statement.
|
|
//
|
|
|
|
m_rc = pSQLNumResultCols( m_hStmt,
|
|
&nresultcols);
|
|
|
|
if ( !ODBC_CONNECTION::Success( m_rc ))
|
|
return FALSE;
|
|
|
|
if ( nresultcols > 0 )
|
|
{
|
|
//
|
|
// Allocate an array of strings for the column names and the column
|
|
// values
|
|
//
|
|
|
|
m_cCols = nresultcols;
|
|
*cCols = m_cCols;
|
|
|
|
m_astrColNames = new STR[m_cCols];
|
|
m_astrValues = new STR[m_cCols];
|
|
m_acbValue = new LONG[m_cCols];
|
|
|
|
//
|
|
// Otherwise, get the column names of the result set and use the
|
|
// display_size() function to compute the length needed by each data
|
|
// type. Next, bind the columns and specify all data will be
|
|
// converted to char.
|
|
//
|
|
|
|
for (i = 0; i < m_cCols; i++)
|
|
{
|
|
m_rc = pSQLDescribeCol( m_hStmt,
|
|
i + 1,
|
|
(UCHAR *) achColName,
|
|
(SWORD)sizeof(achColName),
|
|
&cchColName,
|
|
&ColType,
|
|
&cchColLength,
|
|
&scale,
|
|
&nullable);
|
|
|
|
if ( !ODBC_CONNECTION::Success( m_rc ))
|
|
return FALSE;
|
|
|
|
//
|
|
// Select the buffer size for the retrieved data for this column
|
|
//
|
|
|
|
cchColLength = ODBC_CONNECTION::DisplaySize( ColType,
|
|
min( cchColLength, cchMaxFieldSize) );
|
|
|
|
//
|
|
// Copy the column name and set the column data size
|
|
//
|
|
|
|
if ( !m_astrColNames[i].Copy( achColName ) ||
|
|
!m_astrValues[i].Resize( cchColLength + 1 ))
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
m_rc = pSQLBindCol( m_hStmt,
|
|
i + 1,
|
|
SQL_C_CHAR,
|
|
m_astrValues[i].QueryPtr(),
|
|
cchColLength,
|
|
&m_acbValue[i] );
|
|
|
|
if ( !ODBC_CONNECTION::Success( m_rc ))
|
|
return FALSE;
|
|
}
|
|
|
|
*pastrCols = m_astrColNames;
|
|
*cCols = m_cCols;
|
|
}
|
|
else
|
|
{
|
|
*pfHaveResultSet = FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
BOOL
|
|
ODBC_STATEMENT::QueryValuesAsStr(
|
|
STR * * pastrValues,
|
|
OUT DWORD * * pacbValues,
|
|
BOOL * pfLast
|
|
)
|
|
/*++
|
|
|
|
This method gets the data at the current position.
|
|
|
|
Arguments:
|
|
|
|
pastrValues - Receives a pointer to an array of strings that contains
|
|
the alphanumeric representation of that field
|
|
pacbValues - Receives pointer to array of DWORDs that contain the length
|
|
of the field
|
|
pfLast - Set to TRUE if there are no more values to retrieve
|
|
|
|
Returns:
|
|
|
|
TRUE on success and FALSE if there are any failures.
|
|
|
|
Note:
|
|
|
|
--*/
|
|
{
|
|
*pastrValues = NULL;
|
|
|
|
//
|
|
// Build the bindings if we haven't already
|
|
//
|
|
|
|
if ( !m_astrColNames )
|
|
{
|
|
STR * astrCols;
|
|
DWORD cCols;
|
|
BOOL fHaveResultSet;
|
|
|
|
if ( !QueryColNames( &astrCols,
|
|
&cCols,
|
|
0,
|
|
&fHaveResultSet ))
|
|
{
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
//
|
|
// If there are columns to enumerate, get them now
|
|
//
|
|
|
|
if ( m_astrColNames )
|
|
{
|
|
DWORD i;
|
|
|
|
//
|
|
// Zero terminate the columns as some drivers don't write anything
|
|
// for NULL fields
|
|
//
|
|
|
|
for ( i = 0; i < m_cCols; i++ )
|
|
{
|
|
*((CHAR *) m_astrValues[i].QueryPtr()) = '\0';
|
|
m_acbValue[i] = 0;
|
|
}
|
|
|
|
//
|
|
// Fill in the binding values
|
|
//
|
|
|
|
m_rc = pSQLFetch( m_hStmt );
|
|
|
|
if ( m_rc == SQL_NO_DATA_FOUND )
|
|
{
|
|
*pfLast = TRUE;
|
|
}
|
|
else
|
|
{
|
|
if ( !ODBC_CONNECTION::Success( m_rc ))
|
|
return FALSE;
|
|
|
|
*pfLast = FALSE;
|
|
}
|
|
|
|
*pastrValues = m_astrValues;
|
|
*pacbValues = (DWORD *) m_acbValue;
|
|
}
|
|
else
|
|
{
|
|
*pfLast = TRUE;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
BOOL
|
|
ODBC_STATEMENT::MoreResults(
|
|
BOOL * pfMoreResults
|
|
)
|
|
/*++
|
|
|
|
Determines if there are any more results sets to return to the user
|
|
|
|
pfMoreResults - Set to TRUE if there are more results in the result set
|
|
|
|
--*/
|
|
{
|
|
*pfMoreResults = TRUE;
|
|
|
|
m_rc = pSQLMoreResults( m_hStmt );
|
|
|
|
if ( m_rc == SQL_NO_DATA_FOUND )
|
|
{
|
|
*pfMoreResults = FALSE;
|
|
return TRUE;
|
|
}
|
|
|
|
if ( !ODBC_CONNECTION::Success( m_rc ))
|
|
return FALSE;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
VOID
|
|
ODBC_STATEMENT::FreeColumnMemory(
|
|
VOID
|
|
)
|
|
/*++
|
|
This method frees memory allocated by the QueryColNames and
|
|
QueryValuesAsStr methods.
|
|
|
|
--*/
|
|
{
|
|
if ( m_astrColNames ) delete [] m_astrColNames;
|
|
if ( m_astrValues ) delete [] m_astrValues;
|
|
if ( m_acbValue ) delete [] m_acbValue;
|
|
|
|
m_astrColNames = NULL;
|
|
m_astrValues = NULL;
|
|
m_acbValue = NULL;
|
|
|
|
}
|
|
|
|
# if DBG
|
|
|
|
|
|
VOID
|
|
ODBC_STATEMENT::Print( VOID) const
|
|
{
|
|
DBGPRINTF( ( DBG_CONTEXT,
|
|
" Printing ODBC_STATEMENT( %08x)."
|
|
" HStmt = %08x. OdbcConn=%08x. RetCode = %d\n",
|
|
m_hStmt, m_pOdbcConnection, m_rc));
|
|
|
|
} // ODBC_STATEMENT::Print()
|
|
|
|
# endif // DBG
|
|
|
|
|
|
/**************************************************
|
|
* Member Functions of class ODBC_CONNECTION
|
|
**************************************************/
|
|
|
|
|
|
ODBC_CONNECTION::~ODBC_CONNECTION( VOID)
|
|
/*++
|
|
This function closes the odbc connection ( if open) and cleans up.
|
|
|
|
--*/
|
|
{
|
|
DBG_REQUIRE( Close());
|
|
return;
|
|
} // ODBC_CONNECTION::~ODBC_CONNECTION()
|
|
|
|
|
|
|
|
|
|
|
|
BOOL
|
|
ODBC_CONNECTION::Open(
|
|
IN LPCSTR pszDataSource,
|
|
IN LPCSTR pszUserName,
|
|
IN LPCSTR pszPassword)
|
|
/*++
|
|
This function opens a new odbc connection to given data source
|
|
using the user name and password supplied.
|
|
|
|
Arguments:
|
|
pszDataSource pointer to null-terminated string containing ODBC
|
|
data source name
|
|
pszUserName pointer to null-terminated string containing UserName
|
|
pszPassword pointer to null-terminated string containing Password
|
|
|
|
Returns:
|
|
|
|
TRUE on success and FALSE if there is an error.
|
|
--*/
|
|
{
|
|
BOOL fReturn = FALSE;
|
|
|
|
DBG_ASSERT( pszDataSource != NULL &&
|
|
pszUserName != NULL &&
|
|
pszPassword != NULL);
|
|
|
|
//
|
|
// Allocate an ODBC environment
|
|
//
|
|
|
|
m_rc = pSQLAllocEnv( &m_henv);
|
|
fReturn = Success( m_rc);
|
|
|
|
IF_DEBUG( ODBC) {
|
|
|
|
DBGPRINTF( ( DBG_CONTEXT,
|
|
"SQLAllocEnv() returned ErrorCode %d. henv = %08x\n",
|
|
m_rc, m_henv));
|
|
|
|
CheckAndPrintErrorMessage( this, m_rc);
|
|
}
|
|
|
|
if ( fReturn) {
|
|
|
|
//
|
|
// Establish memory for connection handle within the environment
|
|
//
|
|
|
|
m_rc = pSQLAllocConnect( m_henv, &m_hdbc);
|
|
fReturn = Success( m_rc);
|
|
|
|
IF_DEBUG( ODBC) {
|
|
|
|
DBGPRINTF( ( DBG_CONTEXT,
|
|
"SQLAllocConnect() returns code %d. hdbc = %08x\n",
|
|
m_rc, m_hdbc));
|
|
|
|
CheckAndPrintErrorMessage( this, m_rc);
|
|
}
|
|
}
|
|
|
|
if ( fReturn) {
|
|
|
|
//
|
|
// Use Following call to just printout the dynamic values for ODBC
|
|
//
|
|
// AuxOdbcFunctions( m_henv, m_hdbc);
|
|
|
|
#if 0
|
|
{
|
|
STR str;
|
|
STR strOut;
|
|
SWORD swStrOut;
|
|
|
|
if ( !str.Append( pszDataSource ) ||
|
|
!str.Append( ";UID=" ) ||
|
|
!str.Append( pszUserName ) ||
|
|
!str.Append( ";PWD=" ) ||
|
|
!str.Append( pszPassword ) ||
|
|
!str.Append( ";APP=Internet Services") ||
|
|
!strOut.Resize( 255 ))
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
m_rc = pSQLDriverConnect( m_hdbc,
|
|
NULL,
|
|
(UCHAR *) str.QueryStr(),
|
|
SQL_NTS,
|
|
(UCHAR *) strOut.QueryStr(),
|
|
strOut.QuerySize(),
|
|
&swStrOut,
|
|
SQL_DRIVER_NOPROMPT );
|
|
}
|
|
#else
|
|
{
|
|
m_rc = pSQLConnect( m_hdbc,
|
|
(UCHAR FAR *) pszDataSource, SQL_NTS,
|
|
(UCHAR FAR *) pszUserName, SQL_NTS,
|
|
(UCHAR FAR *) pszPassword, SQL_NTS);
|
|
}
|
|
#endif
|
|
|
|
fReturn = Success( m_rc);
|
|
|
|
IF_DEBUG( ODBC) {
|
|
|
|
DBGPRINTF( ( DBG_CONTEXT,
|
|
"SQLConnect( %s, %s, %s) returns code %d.\n",
|
|
pszDataSource,
|
|
pszUserName,
|
|
pszPassword,
|
|
m_rc));
|
|
|
|
CheckAndPrintErrorMessage( this, m_rc);
|
|
}
|
|
}
|
|
|
|
m_fValid = fReturn;
|
|
|
|
if ( !fReturn) {
|
|
SetLastError( ERROR_GEN_FAILURE );
|
|
}
|
|
|
|
return ( fReturn);
|
|
} // ODBC_CONNECTION::Open()
|
|
|
|
|
|
|
|
|
|
|
|
BOOL
|
|
ODBC_CONNECTION::Open(
|
|
IN LPCWSTR pwszDataSource,
|
|
IN LPCWSTR pwszUserName,
|
|
IN LPCWSTR pwszPassword)
|
|
/*++
|
|
This function opens a new odbc connection to given data source
|
|
using the user name and password supplied.
|
|
|
|
Arguments:
|
|
pwszDataSource pointer to null-terminated string containing ODBC
|
|
data source name
|
|
pwszUserName pointer to null-terminated string containing UserName
|
|
pwszPassword pointer to null-terminated string containing Password
|
|
|
|
Returns:
|
|
TRUE on success and FALSE if there is an error.
|
|
|
|
Note:
|
|
Poor me. ODBC Does not take UNICODE strings :(. 2/15/95
|
|
So we will explicitly convert parameters to ANSI on stack.
|
|
--*/
|
|
{
|
|
BOOL fReturn;
|
|
DWORD dwError = NO_ERROR;
|
|
CHAR * pszDataSource;
|
|
CHAR * pszUserName;
|
|
CHAR * pszPassword;
|
|
|
|
//
|
|
// Convert all parameters from UNICODE to ANSI
|
|
//
|
|
pszDataSource = ConvertUnicodeToAnsi( pwszDataSource, NULL, 0);
|
|
pszUserName = ConvertUnicodeToAnsi( pwszUserName, NULL, 0);
|
|
pszPassword = ConvertUnicodeToAnsi( pwszPassword, NULL, 0);
|
|
|
|
//
|
|
// Make an ANSI open call.
|
|
//
|
|
fReturn = Open( pszDataSource, pszUserName, pszPassword);
|
|
|
|
if ( !fReturn) {
|
|
|
|
dwError = GetLastError();
|
|
}
|
|
|
|
//
|
|
// Freeup the space allocated.
|
|
//
|
|
if ( pszDataSource != NULL) {
|
|
|
|
TCP_FREE( pszDataSource);
|
|
pszDataSource = NULL;
|
|
}
|
|
|
|
if ( pszUserName != NULL) {
|
|
|
|
TCP_FREE( pszUserName);
|
|
pszUserName = NULL;
|
|
}
|
|
|
|
if ( pszPassword != NULL) {
|
|
|
|
//
|
|
// Zero the password for security reasons.
|
|
//
|
|
memset( pszPassword, 0, strlen( pszPassword));
|
|
|
|
TCP_FREE( pszPassword);
|
|
pszPassword = NULL;
|
|
}
|
|
|
|
if ( !fReturn) {
|
|
|
|
SetLastError( dwError);
|
|
}
|
|
|
|
return ( fReturn);
|
|
} // ODBC_CONNECTION::Open()
|
|
|
|
|
|
|
|
|
|
BOOL
|
|
ODBC_CONNECTION::Close( VOID)
|
|
/*++
|
|
This function closes the connection established with the ODBC
|
|
and frees up and dynamic memory used.
|
|
|
|
Returns:
|
|
TRUE on success and FALSE if there are any failures.
|
|
|
|
Note:
|
|
Intermediate failures are ignored. Normally they should not occur.
|
|
|
|
--*/
|
|
{
|
|
BOOL fReturn = TRUE;
|
|
|
|
|
|
//
|
|
// Disconnect and free the connection.
|
|
//
|
|
if ( m_hdbc != SQL_NULL_HDBC) {
|
|
|
|
m_rc = pSQLDisconnect( m_hdbc );
|
|
|
|
//
|
|
// Disconnect is allowed to fail w/o being fatal so don't set
|
|
// fReturn
|
|
//
|
|
|
|
IF_DEBUG( ODBC) {
|
|
|
|
DBGPRINTF( ( DBG_CONTEXT,
|
|
"Warning: SQLDisconnect() returns code %d.\n",
|
|
m_rc));
|
|
CheckAndPrintErrorMessage( this, m_rc);
|
|
}
|
|
|
|
m_rc = pSQLFreeConnect( m_hdbc);
|
|
|
|
m_hdbc = SQL_NULL_HDBC;
|
|
fReturn = fReturn && Success( m_rc);
|
|
|
|
IF_DEBUG( ODBC) {
|
|
|
|
DBGPRINTF( ( DBG_CONTEXT,
|
|
"SQLFreeConnect() returns code %d.\n",
|
|
m_rc));
|
|
|
|
CheckAndPrintErrorMessage( this, m_rc);
|
|
}
|
|
}
|
|
|
|
//
|
|
// Free the ODBC environment handle.
|
|
//
|
|
if ( m_henv != SQL_NULL_HENV) {
|
|
|
|
m_rc = pSQLFreeEnv( m_henv);
|
|
m_henv = SQL_NULL_HENV;
|
|
fReturn = fReturn && Success( m_rc);
|
|
|
|
IF_DEBUG( ODBC) {
|
|
|
|
DBGPRINTF( ( DBG_CONTEXT,
|
|
"SQLFreeEnv() returns code %d.\n",
|
|
m_rc));
|
|
|
|
CheckAndPrintErrorMessage( this, m_rc);
|
|
}
|
|
}
|
|
|
|
return ( fReturn);
|
|
} // ODBC_CONNECTION::Close()
|
|
|
|
|
|
|
|
|
|
|
|
PODBC_STATEMENT
|
|
ODBC_CONNECTION::AllocStatement( VOID)
|
|
/*++
|
|
Description:
|
|
This function allocates a new ODBC statement object and also calls
|
|
SQLAllocStatement to create the state required for establishing the
|
|
statement in the ODBC Manager.
|
|
|
|
Arguments:
|
|
None
|
|
|
|
Returns:
|
|
TRUE on success and FALSE if there is any failure.
|
|
--*/
|
|
{
|
|
PODBC_STATEMENT pOdbcStmt = NULL;
|
|
HSTMT hstmt = SQL_NULL_HSTMT;
|
|
|
|
DBG_ASSERT( Success( m_rc));
|
|
|
|
//
|
|
// Allocate a statement handle and associate it with the connection.
|
|
//
|
|
m_rc = pSQLAllocStmt( m_hdbc, &hstmt);
|
|
|
|
IF_DEBUG( ODBC) {
|
|
|
|
DBGPRINTF( ( DBG_CONTEXT,
|
|
"SqlAllocStmt() returns code %d."
|
|
" New Hstmt is : %08x\n",
|
|
m_rc, hstmt));
|
|
CheckAndPrintErrorMessage( this, m_rc);
|
|
}
|
|
|
|
if ( ODBC_CONNECTION::Success( m_rc)) {
|
|
|
|
pOdbcStmt = new ODBC_STATEMENT( this, hstmt);
|
|
}
|
|
|
|
return ( pOdbcStmt);
|
|
} // ODBC_CONNECTION::AllocStatement()
|
|
|
|
|
|
BOOL
|
|
ODBC_CONNECTION::SetConnectOption(
|
|
IN UWORD Option,
|
|
IN SQLPOINTER Param
|
|
)
|
|
/*++
|
|
|
|
Sets various options on this connection
|
|
|
|
Arguments:
|
|
|
|
Option - Option to set
|
|
Param - Option value (32 bit dword or pointer to null terminated string)
|
|
|
|
Returns:
|
|
TRUE on success and FALSE if there are any failures. Failures are
|
|
considered to be soft errors as the problem may be the driver doesn't
|
|
support the option etc.
|
|
|
|
Note:
|
|
|
|
--*/
|
|
{
|
|
BOOL fReturn = TRUE;
|
|
RETCODE rc;
|
|
|
|
if ( m_hdbc != SQL_NULL_HDBC)
|
|
{
|
|
rc = pSQLSetConnectOption( m_hdbc, Option, Param);
|
|
|
|
fReturn = Success( rc);
|
|
|
|
IF_DEBUG( ODBC) {
|
|
|
|
DBGPRINTF( ( DBG_CONTEXT,
|
|
"SQLSetConnectOption( %d, %d ) returns code %d.\n",
|
|
Option,
|
|
Param,
|
|
rc));
|
|
|
|
CheckAndPrintErrorMessage( this, rc);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
DBGPRINTF( ( DBG_CONTEXT,
|
|
"[SetConnectOption] Warning: Setting option on closed connection\n" ));
|
|
}
|
|
|
|
return fReturn;
|
|
}
|
|
|
|
|
|
|
|
BOOL
|
|
ODBC_CONNECTION::GetLastErrorText(
|
|
OUT STR * pstrError,
|
|
IN HSTMT hstmt,
|
|
IN RETCODE rc
|
|
) const
|
|
/*++
|
|
|
|
This method returns the textual representation of the last ODBC or windows
|
|
error that occurred. Even though the ODBC methods return FALSE on failure,
|
|
if it was an ODBC call that failed, then GetLastError won't return the
|
|
needed error code. Clients of this class should call this method to get
|
|
a descriptive text string of the failure.
|
|
|
|
Returns:
|
|
|
|
TRUE on success and FALSE if there are any failures.
|
|
|
|
Note:
|
|
If this function returns FALSE, then a client should call GetLastError
|
|
for the error code.
|
|
|
|
--*/
|
|
{
|
|
BOOL fReturn = TRUE;
|
|
|
|
if ( ODBC_CONNECTION::Success( rc)) {
|
|
|
|
fReturn = pstrError->LoadString( GetLastError());
|
|
|
|
} else {
|
|
|
|
CHAR rgchMsg[ SQL_MAX_MESSAGE_LENGTH + 10];
|
|
CHAR achState[30];
|
|
CHAR rgchFullMsg[ sizeof(rgchMsg) + sizeof(achState) + 60];
|
|
SWORD cbMsg;
|
|
LONG lError;
|
|
DWORD dwError;
|
|
|
|
//
|
|
// If we're formatting as HTML, we bullet list the items
|
|
//
|
|
|
|
pstrError->Reset();
|
|
|
|
//
|
|
// Loop to pick up all of the errors
|
|
//
|
|
|
|
do {
|
|
cbMsg = SQL_MAX_MESSAGE_LENGTH;
|
|
|
|
rc = pSQLError( m_henv,
|
|
m_hdbc,
|
|
hstmt,
|
|
(UCHAR *) achState,
|
|
&lError,
|
|
(UCHAR *) rgchMsg,
|
|
cbMsg,
|
|
&cbMsg );
|
|
|
|
if ( ODBC_CONNECTION::Success( rc)) {
|
|
|
|
wsprintf( rgchFullMsg,
|
|
"[State=%s][Error=%d]%s\n",
|
|
achState, lError, rgchMsg);
|
|
|
|
if ( !pstrError->Append( rgchFullMsg )) {
|
|
|
|
fReturn = FALSE;
|
|
break;
|
|
}
|
|
} else {
|
|
|
|
//
|
|
// This is indicates there are no more error strings
|
|
// to pick up so we should get out
|
|
//
|
|
|
|
if ( rc == SQL_NO_DATA_FOUND ) {
|
|
|
|
//
|
|
// Append the end of unorder list marker
|
|
//
|
|
|
|
rc = SQL_SUCCESS;
|
|
break;
|
|
}
|
|
}
|
|
|
|
} while ( ODBC_CONNECTION::Success( rc) );
|
|
|
|
if ( !ODBC_CONNECTION::Success( rc) )
|
|
{
|
|
DBGPRINTF( ( DBG_CONTEXT,
|
|
"[GetLastErrorText] SqlError() returned error %d.\n",
|
|
rc));
|
|
|
|
SetLastError( ERROR_GEN_FAILURE );
|
|
fReturn = FALSE;
|
|
}
|
|
}
|
|
|
|
return ( fReturn);
|
|
|
|
} // ODBC_CONNECTION::GetLastErrorText()
|
|
|
|
|
|
|
|
BOOL
|
|
ODBC_CONNECTION::GetLastErrorTextAsHtml(
|
|
OUT STR * pstrError,
|
|
IN HSTMT hstmt,
|
|
IN RETCODE rc
|
|
) const
|
|
/*++
|
|
|
|
This method returns the textual representation of the last ODBC or windows
|
|
error that occurred. Even though the ODBC methods return FALSE on failure,
|
|
if it was an ODBC call that failed, then GetLastError won't return the
|
|
needed error code. Clients of this class should call this method to get
|
|
a descriptive text string of the failure.
|
|
|
|
Returns:
|
|
|
|
TRUE on success and FALSE if there are any failures.
|
|
|
|
Note:
|
|
If this function returns FALSE, then a client should call GetLastError
|
|
for the error code.
|
|
|
|
--*/
|
|
{
|
|
BOOL fReturn = TRUE;
|
|
|
|
if ( ODBC_CONNECTION::Success( rc)) {
|
|
|
|
fReturn = pstrError->LoadString( GetLastError());
|
|
|
|
} else {
|
|
|
|
CHAR rgchMsg[ SQL_MAX_MESSAGE_LENGTH + 10];
|
|
CHAR achState[30];
|
|
CHAR rgchFullMsg[ sizeof(rgchMsg) + sizeof(achState) + 60];
|
|
SWORD cbMsg;
|
|
LONG lError;
|
|
DWORD dwError;
|
|
|
|
//
|
|
// If we're formatting as HTML, we bullet list the items
|
|
//
|
|
|
|
if ( !pstrError->Copy( "<UL>" ))
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
//
|
|
// Loop to pick up all of the errors
|
|
//
|
|
|
|
do {
|
|
cbMsg = SQL_MAX_MESSAGE_LENGTH;
|
|
|
|
rc = pSQLError( m_henv,
|
|
m_hdbc,
|
|
hstmt,
|
|
(UCHAR *) achState,
|
|
&lError,
|
|
(UCHAR *) rgchMsg,
|
|
cbMsg,
|
|
&cbMsg );
|
|
|
|
if ( ODBC_CONNECTION::Success( rc)) {
|
|
|
|
wsprintf( rgchFullMsg,
|
|
"<LI>[State=%s][Error=%d]%s\n",
|
|
achState, lError, rgchMsg);
|
|
|
|
if ( !pstrError->Append( rgchFullMsg )) {
|
|
|
|
fReturn = FALSE;
|
|
break;
|
|
}
|
|
} else {
|
|
|
|
//
|
|
// This is indicates there are no more error strings
|
|
// to pick up so we should get out
|
|
//
|
|
|
|
if ( rc == SQL_NO_DATA_FOUND ) {
|
|
|
|
//
|
|
// Append the end of unorder list marker
|
|
//
|
|
|
|
if ( !pstrError->Append( "</UL>" )) {
|
|
return FALSE;
|
|
}
|
|
|
|
rc = SQL_SUCCESS;
|
|
break;
|
|
}
|
|
}
|
|
|
|
} while ( ODBC_CONNECTION::Success( rc) );
|
|
|
|
if ( !ODBC_CONNECTION::Success( rc) )
|
|
{
|
|
DBGPRINTF( ( DBG_CONTEXT,
|
|
"[GetLastErrorText] SqlError() returned error %d.\n",
|
|
rc));
|
|
|
|
SetLastError( ERROR_GEN_FAILURE );
|
|
fReturn = FALSE;
|
|
}
|
|
}
|
|
|
|
return ( fReturn);
|
|
|
|
} // ODBC_CONNECTION::GetLastErrorTextAsHtml()
|
|
|
|
|
|
|
|
BOOL
|
|
ODBC_CONNECTION::GetInfo(IN DWORD fInfoType,
|
|
IN PVOID rgbInfoValue,
|
|
IN DWORD cbInfoValueMax,
|
|
IN OUT DWORD * pcbInfoValue)
|
|
/*++
|
|
This function obtains the value of the fInfoType for a specific
|
|
ODBC Connection. It mimicks the SQLGetInfo() and uses it to obtain
|
|
this value. On successful return the pointer rgbInfoValue contains
|
|
the requested value and pcbInfoValue contains the size in bytes of
|
|
data.
|
|
|
|
Arguments:
|
|
fInfoType - flag containing the Information Type (name) to be fetched.
|
|
rgbInfoValue - pointer to buffer which will contain the return data.
|
|
cbInfoValue - size of rgbInfoValue in bytes.
|
|
pcbInfoValue - pointer to location that will contain the size of
|
|
information stored in rgbInfoValue, on successful return.
|
|
If buffer is insufficient, this location will contain the
|
|
required number of bytes.
|
|
|
|
Returns:
|
|
TRUE on success and FALSE if there is any failure.
|
|
|
|
--*/
|
|
{
|
|
BOOL fReturn = FALSE;
|
|
|
|
if ( m_hdbc != SQL_NULL_HDBC) {
|
|
|
|
RETCODE rc;
|
|
|
|
rc = pSQLGetInfo( m_hdbc, (UWORD ) fInfoType,
|
|
(PTR) rgbInfoValue,
|
|
(SWORD) cbInfoValueMax,
|
|
(SWORD FAR *) pcbInfoValue);
|
|
|
|
fReturn = Success( rc);
|
|
|
|
IF_DEBUG( ODBC) {
|
|
|
|
DBGPRINTF( ( DBG_CONTEXT,
|
|
"SQLGetInfo( %08x, %d, %08x, %d, %08x) returns %d.\n",
|
|
m_hdbc, fInfoType, rgbInfoValue, cbInfoValueMax,
|
|
pcbInfoValue, rc));
|
|
|
|
CheckAndPrintErrorMessage( this, rc);
|
|
}
|
|
} else {
|
|
|
|
DBGPRINTF( ( DBG_CONTEXT,
|
|
"[SQLGetInfo] Invalid Connection to ODBC\n"));
|
|
}
|
|
|
|
return (fReturn);
|
|
} // ODBC_CONNECTION::GetInfo()
|
|
|
|
|
|
|
|
DWORD
|
|
ODBC_CONNECTION::DisplaySize(
|
|
SWORD coltype,
|
|
DWORD collen
|
|
)
|
|
{
|
|
DWORD cbSize = MAX_NONCHAR_DATA_LEN;
|
|
|
|
//
|
|
// Note that we always set the size to at least four bytes. This prevents
|
|
// any possible problems if the column to be bound is NULLable, which can
|
|
// cause a NULL to be written for the data during a fetch
|
|
//
|
|
|
|
switch (coltype)
|
|
{
|
|
case SQL_CHAR:
|
|
case SQL_VARCHAR:
|
|
case SQL_LONGVARCHAR:
|
|
case SQL_BINARY:
|
|
case SQL_VARBINARY:
|
|
case SQL_LONGVARBINARY:
|
|
cbSize = max(collen + sizeof(CHAR), sizeof(PVOID));
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return ( cbSize);
|
|
} // ODBC_CONNECTION::DisplaySize()
|
|
|
|
|
|
|
|
|
|
# if DBG
|
|
VOID
|
|
ODBC_CONNECTION::Print( VOID) const
|
|
{
|
|
DBGPRINTF( ( DBG_CONTEXT,
|
|
"Printing ODBC_CONNECTION ( %08x). fValid = %d\n"
|
|
" HENV = %08x. HDBC = %08x. ReturnCode =%d\n",
|
|
this, m_fValid,
|
|
m_henv, m_hdbc, m_rc));
|
|
return;
|
|
} // ODBC_CONNECTION::Print()
|
|
|
|
|
|
# endif // DBG
|
|
|
|
/************************ End of File ***********************/
|