how to uninstall mariadb in ubuntu code example
Example 1: uninstall mariadb server and client in ubuntu 18.4
sudo systemctl stop mysql
sudo apt-get remove --purge mysql-server mysql-client mysql-common
Example 2: remove mariadb
$ sudo apt-get purge mariadb-server
Example 3: uninstall mariadb server and client in ubuntu 18.4
sudo apt-get autoclean
sudo rm -rf /var/lib/mysql/
sudo rm -rf /etc/mysql/
Example 4: uninstall mariadb server and client in ubuntu 18.4
sudo apt-get autoremove