Hello, @predragz

You can check our tutorial for installing phpMyAdmin on Ubuntu 18.04:

https://www.digitalocean.com/community/tutorials/how-to-install-and-secure-phpmyadmin-on-ubuntu-18-04

Hope this helps!

You can upload for example https://www.adminer.org/ to server and manage you databases with It, like https://domain.com/adminer.php as example

The MySQL database system is the most popular, open-source, relational database.