MySQL Databases - MySQL® Database Wizard
Create and Modify Databases
MySQL Databases allow you to store lots of information in an easy to access manner. To use a database, you'll need to create it. Only MySQL Users (different than mail or other users) that have privileges to access a database can read from or write to that database.
Database naming convention:
username_domain_com

phpMyAdmin - Easily administer your dbase.

Remote MySQL - Remote Database Access Hosts
You can allow external web servers to access your MySQL databases by adding their domain name to the list of hosts that are able to access databases on your web site. localhost stands for the server that your site is currently on.