"If you site relies on MySQL and stores its sensitive data in a
MySQL database, you will most definitely want to backup that
information so that it can be restored in case of any disaster
(manual mistake to delete some data, software errors, hardware
errors, server compromise, etc.). In a previous post I have
presented that MySQL provides the basic tool (mysqldump) to perform
database backups. This is required because backing up a database is
a little different than backing up regular files..."