thank you for your reply Susanta.
the key point here is that no matter i set the sqldbtype or not, this code was just works fine without any warns or exceptions, and that`s the one i want to known why.
thank you for your reply Susanta.
the key point here is that no matter i set the sqldbtype or not, this code was just works fine without any warns or exceptions, and that`s the one i want to known why.