212: Joomla 2.5 Advanced Database Information
How to Change Your Joomla 2.5 Database Username and Password
You can change your Joomla 2.5 database username and password through either your Joomla 2.5 admin screen or by manually editing your Joomla configuration.php file. We'll show you how to do both, but we recommend the manual configuration.php change.
Joomla Database Connection Error (2): Could Not Connect to MySQL
In this article, we'll cover the more common Joomla 2.5 database errors and steps you can take to resolve them.