From within cPanel, you can create MariaDB databases and assign users to them (via ACLs).
Once you're logged into cPanel, head to "MariaDB/MySQL databases" to view a list of current databases.
From there, you can click to Add a New Database, and choose a name for the database to be given.
Note that we enforce cPanel username based database naming - they'll use cpaneluser_dbname
Without a user though, you're not going to be able to configure any app or system to talk to it!
At the bottom of the MariaDB/MySQL Databases page, you're able to create a new MariaDB user.
Choose a relevant username which will be appended to the cPanel user (ie. cpaneluser_dbuser)
Make sure that the password is secure, and note it down as you'll need it to configure your app.
With your MariaDB database AND user now ready to go, you can assign the user to the database.
On the same page, there's a section with 2 drop-down boxes to assign - choose your DB and user.
Click through to assign permissions between the two, noting that you'll usually want all of them.
You can now link your newly-created database and user up to your web system!
Please let our team know if you have any problems getting them to talk and we'll gladly help.
(Hint: Installatron handles this for you, and installs many common web apps - find it in cPanel!)