MySQL is an open-source relational database management system (RDBMS). It organizes data into tables with rows and columns, allowing relationships between them, and uses SQL (Structured Query Language) to create, modify, and extract data. MySQL was created by the Swedish company MySQL AB, founded by David Axmark, Allan Larsson, and Michael "Monty" Widenius. Widenius began the original development of MySQL in 1994. Oracle Corporation currently owns MySQL. The dolphin in the MySQL logo is named "Sakila".
Key features include ACID compliance, high performance and scalability, replication and high availability, flexible storage engines, and security features. It supports various operating systems like Linux, Windows, and macOS, and can be deployed on-premises or in the cloud. It's known for high availability, ensuring minimal downtime through redundancy, automatic failover, and load balancing. MySQL offers different storage engines like InnoDB and MyISAM, suiting different needs. The latest LTS (Long Term Support) version is 8.4.8, released on 2026-01-20. MySQL 8.0 reached End of Life (EoL) in April 2026.
MySQL is available under the GNU General Public License and various proprietary licenses. The Community Edition is free to download and use, while commercial editions like Standard, Enterprise, and Cluster Carrier Grade offer additional features and support. Pricing for the commercial editions varies based on the number of servers and cores, ranging from approximately $2,140 to $64,200 per year. DigitalOcean offers single node clusters starting at $15 per month and high availability clusters from $30 per month. MySQL is widely used in web applications, e-commerce platforms, enterprise software, and more.