MySQL is a database management system based on Structured Query Language (SQL) which is used in web applications.
MySQL consists of the server, utility programmes that help in the administration of mySQL databases and supporting software.
The server handles all database instructions, such as creating, accessing or changing data. To interact with a database you send a message to the server.
It is used commonly in websites, where there are large databases of data to be managed.
MySQL is used in popular websites such as Google, Facebook, Twitter and YouTube.
MySQL is open source and can be used in a wide range of applications.