Hello, OLE DB(C++) World!

hello.cpp

#include <atldbcli.h>
 
int _tmain( int argc, TCHAR* argv[] )
{
    CoInitialize(NULL);
    USES_CONVERSION;
 
    CDataSource ds;
    CSession ses;
    CCommand<CDynamicAccessor> rs;
 
    WCHAR szCon[] = L"PROVIDER=SQLOLEDB;SERVER=(local);DATABASE=master;UID=sa;PWD=P@ssW0rd";
    WCHAR szSQL[] = L"SELECT 'Hello, OLE DB World!' AS Message";
 
    ds.OpenFromInitializationString( szCon );
    ses.Open( ds );
    rs.Open( ses, szSQL );
    while( rs.MoveNext() == S_OK )
    {
        _tprintf( _T("%s\n"), OLE2T( rs.GetColumnName(1) ) );
        _tprintf( _T("--------------------\n") );
        _tprintf( _T("%s\n"), (LPCTSTR)rs.GetValue(1) );
    }
    ses.Close();
    ds.Close();
 
    CoInitialize(NULL);
 
    return 0;
}