MythTV uses a MySQL relational database to manage almost all aspects of configuration and day-to-day operation. Mythfrontend, mythbackend, mythfilldatabase, MythTV plugins and ancillary programs all interact with the database and use it to store settings and information.
Note that when running multiple frontends and/or backends, only one database is required.
Command line interface
Use the mysql command on the host running the database:
% mysql -u mythtv -pmythtv mythconverg
SQL commands can be issued at the mysql> prompt.
Try installing phpMyAdmin.