How can I conect my sqlite.db with MySql??? Is this possible ? Any simply example for using the Mysql ???

They are different. I suggest to do just one. Integrating the two databases takes a lot effort and skill to do. If you are developing an application that requires multi-user that the user can access simultaneously in the system, then go with MySQL. For a desktop with single-user at a time, then go with sqlite. You can do LAN-based sqlite, but there's drawback in that so I wouldn't recommend it.