depends what mysql client you have access to...
If you have access to the command line, something like
mysql -u root
drop database moodle
Other than that, install and use phpmyadmin.
If you have access to the command line, something like
mysql -u root
drop database moodle
Other than that, install and use phpmyadmin.
The real simple way is to delete the disk folder containing all the tables and then restart MySQL. You get no warnings or second chances, so using Webmin for a Linux server of MySQLAdmin is probably the best way.