For every database, you should set the root or sa passwords to something other than the default, unless you want to get hacked. For mysql, the system administrator user is usually called root, but sometimes it’s called admin or something else.
Here’s the two methods to reset the password:
From the Command Line
mysqladmin -u root password “newpassword”
mysqladmin -u root -h host_name password “newpassword”
mysqladmin -u root password ws8dr8as3
mysqladmin -u root -h localhost password ws8dr8as3
You will also want to restart the database server after running this command
sudo /etc/init.d/mysql restart
Alternative Method (from MySQL Client)
If you don’t have access to the server, or you’re running on Windows and you already know the password, you can connect to the server as root and then use the following command:
mysql> SET PASSWORD FOR root@localhost=PASSWORD(’newpassword’);
Enjoy your new MySQL Password!