Answer:
Explained below
Step-by-step explanation:
They are both server database.
MySQL Server database has two licensing options namely GPLv2 and Enterprise. Whereas, MariaDB Server database is one that has only one license which it is licensed to namely GPLv2.
Now, the license for both of them differs in that the one for MySQL Server database comes with some available features and support. Whereas, the one for MariaDB comes with the full-featured package.