What is MySQL in WordPress?

MySQl is an open source relational database used by Wordpress to manage records. Mysql contains database with a set of tables linked to each other by keys. Like one key can be user id or post id. As MySQL is free it is widely used with wordpress.

MySQL is a database management system that is used by WordPress to store and retrieve data. WordPress is built on a PHP and MySQL platform, which means that it uses PHP scripts to interact with a MySQL database to store and retrieve information, such as posts, pages, users, and comments.

When you install WordPress, you will be prompted to provide connection details for a MySQL database, such as the database name, username, and password. These details are used to connect to the database and create the necessary tables to store the data for your WordPress site. MySQL is an open-source relational database management system, it is widely used for web applications, and it's the most widely used database system for web applications and WordPress is one of the most widely used Content Management Systems (CMS), it's a perfect match.