MySQL is currently the most popular RDBMS. SQL databases can be used for small and enterprise applications alike. The Total Cost of Ownership is very minimal for MySQL.
MariaDB is a free and open-source relational database management system, of the popular MySQL. It offers compatibility with MySQL so it’s easy for developers to switch from one database to the other database.
Microsoft SQL Server is an extremely popular RDBMS. MS-SQL becomes an ideal choice for application developers due to its increased data security, ease of configuration, optimized data storage and data recovery support.