MySQL is the world's most used open-source relational database management system. It uses the Structured Query Language, which is the most popular and used language used for processing data into databases. It is named after the daughter of its co-founder Michael Widenius – My.
What MySQL does is to create many tables that are small in size, instead of creating one huge table. This is useful in terms of the speed of processing the information.
MySQL is part of the LAMP bundle of free and open-source software. The M in LAMP stands for MySQL.