How to use Forge Class to create a database schema?

You can use the native MySQLi calls to create anything that you need for the database.

How? I try to load only the driver, but I found nothing in the guide or Google.

Can you send dome code?

Good advice from @InsiteFX

If you need to use user inputs for db connection, (or need the info over more than one method/call) you can look over how I do it in Open Blog. https://github.com/enlivenapp/Open-Blog-...taller.php

Saving the connection info to $this->session... then using that info to populate the database connection info.

You can also get an idea on how to use a .sql file to populate the db info all at once.