MySQL is a database management system that allows you to manage databases. Every website needs to connect with database to fetch data and then supply to the user and this where MySQL comes into act. Whenever any visitor tries to access a webpage then automatically server tries to connect with the host server and fetches the information from the database and then shows the result to the visitor. The server application respond with the requested information and it will appear on the clients’ side.
For every website in the world, you need a database management structure such as MySQL. It stores a large amount of data into their server. All these databases are organized separately in tables.
MySQL is an open source software which you can use without paying anything.
To know more about MySQL, read the below articles: