How to Completly Remove and Install MariaDB on CentOS 7.6

This video covers the method to completely remove and install MariaDB 10.1.39 on CentOS 7.6. MariaDB server is one of the most popular database servers in the world. It is made by the original developers of MySQL and guaranteed to stay open source.
For more explanation on this video: https://www.linuxhelp.com/how-to-completely-remove-and-install-mariadb-10-1-39v-on-centos-7-6