MySQL is the database that contains important information, such as user credentials, website content or options such as size and color for your favorite products. It is part of a "stack" of software called LAMP, which stands for Linux, the Apache web server, MySQL and the PHP programming language.

Read here why you would want to install MySQL on Windows 10 and how to do it.

MySQL is free, open-source software, and you can even download the source code if you want. For many, this is one reason why it has become trusted to be part of the world's most popular web platform. In a more practical sense, this means that you can download MySQL for free and use it for yourself.

Why would you want to do this? Well, if you’re curious about technology, you can play around with it to see how it works. You can create your own databases, for educational purposes or to keep track of important items at home. You can also install it to learn SQL, the programming language used to manage and interact with most databases.