This is optional. You can use MySQL through command line but this is a good way to administer MySQL. Download phpmyadmin from site: https://www.phpmyadmin.net/
PhpMyAdmin is a free and open source tool for the administration of MySQL and MariaDB. As a portable web application written in PHP, it has become one of the most popular administration tool for MySQL.
Here are some references:
https://www.youtube.com/watch?v=lL_aols7Yl4
https://www.youtube.com/watch?v=C6ONKiZqkcw
https://www.youtube.com/watch?v=KFYXY3MT-XA
https://www.youtube.com/watch?v=YzlFqNXJgfM