Uninstall MySQL On Ubuntu OS

 1. open Terminal and execute below command

sudo systemctl stop mysql

this command will stop mysql service

2. Next run below command

sudo apt-get purge mysql-server mysql-client mysql-common mysql-server-core-* mysql-client-core-*

3.Below command will remove MySQL configuration and data.

sudo rm -rf /etc/mysql /var/lib/mysql

 

4.

(Optional) Remove unnecessary packages.

sudo apt autoremove

(Optional) Remove apt cache.

sudo apt autoclean