<p>The database is where most of the Moodle settings and data are stored and must be configured here.</p>
<p>The database name, username, and password are required fields; table prefix is optional.</p>
<p>The database name may contain only alphanumeric characters, dollar ($) and underscore (_).</p>
<p>If the database currently does not exist, and the user you specify has permission, Moodle will attempt to create a new database with the correct permissions and settings.</p>
<p>This driver is not compatible with legacy MyISAM engine.</p>