;), pszDataSource, pszUserID, pszPassword, uTimeout ) );
    //Initial Catalog=master指明连接成功后，"USE master"。

    EAutoReleasePtr<IDataInitialize> pIDataInitialize;
    HRESULT hResult = ::CoCreateInstance( CLSID_MSDAINITIALIZE, NULL, CLSCTX_INPROC_SERVER,
            IID_IDataInitialize, ( void** )&pIDataInitialize );
    if( FAILED( hResult ) )
    {
        return hResult;
    }

    EAutoReleasePtr<IDBInitialize> pIDBInitialize;
    hResult = pIDataInitialize->GetDataSource( NULL, CLSCTX_INPROC_SERVER, ( LPCOLESTR )szInitStr,
              IID_IDBInitialize, ( IUnknown** )&pIDBInitialize );
    if( FAILED( hResult ) )
    {
        return hResult;
    }
    hResult = pIDBInitialize->Initialize( );
    if( FAILED( hResult ) )
    {
        return hResult;
    }
    * ppIDBInitialize = pIDBInitialize.Detach( );
    return S_OK;
}

HRESULT CreateSession( IDBInitialize* pIDBInitialize, IOpenRowset** ppIOpenRowset )
{
    ASSERT( pIDBInitialize != NULL && ppIOpenRowset != NULL );
    EAutoReleasePtr<IDBCreateSession> pSession;
    HRESULT hResult = pIDBInitialize->QueryInterface( IID_IDBCreateSession, ( void** )&pSession );
    if( FAILED( hResult ) )
    {
        return hResult;
    }
    EAutoReleasePtr<IOpenRowset> pIOpenRowset;
    hResult = pSession->CreateSession( NULL, IID_IOpenRowset, ( IUnknown** )&pIOpenRowset );
    if( FAILED( hResult ) )
    {
        return hResult;
    }
    * ppIOpenRowset = pIOpenRowset.Detach( );
    return S_OK;
}

HRESULT CreateCommand( IOpenRowset* pIOpenRowset, ICommand** ppICommand, ICommandText** ppICommandText )
{
    ASSERT( pIOpenRowset != NULL && ppICommand != NULL && ppICommandText != NULL );
    HRESULT hResult;
    EAutoReleasePtr<ICommand> pICommand;
    {
        EAutoReleasePtr<IDBCreateCommand> pICreateCommand;
        hResult = pIOpenRowset->QueryInterface( IID_IDBCrea