Disable Autostart of MySQL Server on Ubuntu

OS: Ubuntu 19.04

When the MySQL server is installed, it automatically started with the OS. It slows the speed of OS loading. But the computer is for personal, not a DB server. I just want to start it when I need.

Check the MySQL server's status and stop it.

$ service mysql status
$ service mysql stop

Disable autostart:

$ sudo systemctl disable mysql

When you need it, it can be started by:

$ service mysql start