MySQL is a relational database management system (RDBMS) based on SQL (Structured Query Language). First released in January, 1998, MySQL is now one component of parent company MySQL AB’s product line of database servers and development tools. Yes, it really is this easy.run the following command to change the mysql root password
sudo /etc/init.d/mysql reset-password
New MySQL root password:
Verify:
Setting new MySQL root password