MySQL is the most popular, free, widely used SQL engine. It can be used as a fast database as well as a rock-solid DBMS ( Database Management System ) using a modular engine architecture. Why MySQL? It is Free as in Freedom - Released with GPL version 2 license. It is Cost - Free! It is one of the fastest databases available. Thanks to its portability, you can easily import / export from Excel and other databases. Useful for both small as well as large databases containing billions of records and terabytes of data in hundreds of thousands of tables. It supports most of ANSI SQL commands.