MySQL is a globally established relational database management system (RDBMS) which is available as open-source software and enables the management and organisation of data using the Structured Query Language (SQL). Development began in 1994 by Michael Widenius, David Axmark and Allan Larsson, and the first version was released on 23 May 1995. The name “MySQL” is a combination of the first name “My” (the daughter of one of the co-founders) and the acronym “SQL”. Since 2010, MySQL has been owned by Oracle Corporation, which continues to develop it and offers it both as an open-source version under the GNU General Public Licence and in proprietary enterprise versions.
Architecture and operation
MySQL is based on a client-server architecture. In this setup, a client – which may be an application or a user – sends SQL queries to the MySQL server via a network. The server processes these queries, manages the databases and returns the results. The primary language of communication is SQL (Structured Query Language), which is used to create, read, update and delete data (CRUD operations) as well as to define database structures.
A key feature of MySQL is its support for various storage engines, which can be tailored to specific requirements. Since MySQL 5.5, InnoDB has been the default engine. It offers high transaction reliability (ACID compliance), row-level locking and supports foreign keys. Alternatively, there is, for example, MyISAM, which often enables faster read operations but does not support transactions. Choosing the right engine is crucial for the performance and data integrity of an application.
Advantages and versatile areas of application
MySQL’s popularity is based on several key advantages: it is high-performing, reliable and scalable, as confirmed by nearly 30 years of intensive use and testing across a wide variety of scenarios. Its robust security architecture, featuring differentiated user rights and support for Secure Shell (SSH), effectively protects data. Furthermore, MySQL is cross-platform compatible and runs on operating systems such as Linux, macOS and Windows. Thanks to its open-source nature, support from a large global community, and numerous development tools and interfaces to programming languages such as PHP, Python and Java, the software is highly versatile.
MySQL is an integral part of the so-called LAMP stack (Linux, Apache, MySQL, PHP/Python/Perl) and is therefore a cornerstone of many web applications. It serves as the primary database solution for content management systems (CMS) such as WordPress, Joomla, Drupal and TYPO3, as well as for e-commerce platforms such as Magento. Numerous major online services and social networks, including Facebook, Flickr, Twitter and YouTube, use MySQL to store and manage their vast amounts of data. It is also used in enterprise applications, SaaS solutions, online gaming and IoT monitoring systems.
