When you activate MySQL for your account, you'll automatically create a database called mysql. Inside this database is the information you'll need to administer your database, including a table called user that holds all of your MySQL user information. The users in this table are the only ones allowed to connect to your MySQL database.

The yroot user is the main administrative user name assigned to your database. You'll find the yroot user in the user table, as well as the user name and password you created to access your database.

Warning: Modifying or deleting the user table, or deleting the mysql database itself, can permanently damage your database. If you accidentally delete or modify one of these items, you may need to reset your MySQL settings, which requires erasing the database and all the data contained within.