After creating the database via for example the MySQL Database Wizard, you should see it after going to phpMyAdmin. About here:
After switching to this icon, you will see your database in the format of a drop-down tree.
However, it may happen that as soon as the database has been created using the wizard, it will not be visible in phpMyAdmin. It is closely related to the session stored by cPanel, just log out and log in to cPanel again.