[2008] Self-registration database login system

Existing Usernames & passwords are stored in a database.

If a new user wants to join he needs to enter basic data, create password and then login.

Has anyone any sample code or point me to a sample app ?

Thanks very much.

There's no need for sample code for this specifically. All you're doing is adding a new record to a database and there are examples for that all over the place.