MySQL is a relational database management system developed by MySQL AB, Sweden, and currently belongs to Oracle's products. MySQL is one of the most popular relational database management systems. In WEB applications, MySQL is the best RDBMS (Relational Database Management System, relational database management system) application software.

MySQL is a relational database management system, the relational database stores data in different tables, rather than putting all the data in a large warehouse, which increases speed and improves flexibility.

The SQL language used by MySQL is the most commonly used standardized language for accessing databases. MySQL software adopts a dual authority policy, which is divided into community and business editions. Because of its small size, fast speed, low overall cost, especially open source, the development of medium and small web sites will choose MySQL as a website database. Due to the excellent performance of its community edition, PHP and Apache can form a good development environment.