< MariaDB
Linkek
https://www.mariadbtutorial.com
(2021)
https://www.mariadbtutorial.com/mariadb-basics/mariadb-inner-join/
https://www.mariadbtutorial.com/mariadb-views/mariadb-create-view/
https://www.mariadbtutorial.com/mariadb-index/mariadb-create-index/