OTL 4.0, Example 365 (#define OTL_UNICODE_EXCEPTION_AND_RLOGON)

Source Code

// One of the following two #define's enables ODBC / DB2 CLI 
// Unicode SQLxxxW functions
#define UNICODE
#define _UNICODE

#include <iostream>
using namespace std;

#include <stdio.h>

#define OTL_ODBC // Compile OTL 4.0/ODBC
#define OTL_UNICODE // Enable Unicode OTL for ODBC

// Enable OTL Unicode rlogon and otl_exception for ODBC
#define OTL_UNICODE_EXCEPTION_AND_RLOGON 

#if defined(__GNUC__)
#define OTL_UNICODE_CHAR_TYPE SQLWCHAR
#else
#define OTL_UNICODE_CHAR_TYPE wchar_t
#endif

#include <otlv4.h> // include the OTL 4.0 header file

otl_connect db; // connect object

int main()
{
 otl_connect::otl_initialize(); // initialize the database API environment
 try{
// Special Unicode rlogon function
  db.rlogon(L"scott",
            L"tiger",
            L"mssqlxxx"
           ); // connect to the database

 }

 catch(otl_exception& p){ // intercept OTL exceptions
#if defined(__GNUC__)
  OTL_UNICODE_CHAR_TYPE* c=p.msg;
  while(*c){
    cerr<<(char)*c;
    ++c;
  }
  cerr<<endl;
  c=p.sqlstate;
  while(*c){
    cerr<<(char)*c;
    ++c;
  }
  cerr<<endl;
#else
  wcerr<<p.msg<<endl; // print out error message
  wcerr<<p.sqlstate<<endl; // print out error sqlstate
  wcerr<<p.stm_text<<endl; // print out SQL that caused the error
  wcerr<<p.var_info<<endl; // print out the variable that caused the error
#endif
 }

 db.logoff(); // disconnect from the database

 return 0;

}

Output

[Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified
IM002

Examples Contents Go Home

Permission to use, copy, modify and redistribute this document for any purpose is hereby granted without fee, provided that the above copyright notice appear in all copies.