[Bakr]

Nicely explained, however, there are a few errors and or unnecessary things done I would like to point out:

• You free a result when you don't select anything (when creating the table if not exists)
• You don't free the result after selecting information (under OnPlayerConnect)
• You use ` around field names (only necessary around table names)
• You use ' around integer values (only necessary around strings)
• You check if the player is registered under OnDialogResponse in the registration dialog, even though you only show it if they are registered
• When seeing if the player is registered, you select ALL their information, which is unnecessary, and even inefficient with large amounts of fields. Just retrieve one value.

That was just a quick look at the code, didn't study it much. Not to put you down! I'm just trying to help you improve this tutorial.