Pretty much what you asked. A database is similar to a file in that you can read and write to it (you just need to use a specific method to connect to a database and then specific code to read from it and write to it)
There is more information on the subject in the FAQ I think as well as some UDFs for using databases.
One questian
Can I write the details to a database instead of INI file ?? can login script directly write to a Database
