Chapter 1. Introduction to MySQL
MySQL is an open source, multithreaded, relational database management system created by Michael “Monty” Widenius in 1995. In 2000, MySQL was released under a dual-license model that permitted the public to use it for free under the GNU General Public License (GPL); this caused its popularity to soar. The company that owns and develops MySQL is MySQL AB (the AB stands for aktiebolag, the Swedish term for stock company), which is now a subsidiary of Sun Microsystems. Currently, MySQL AB estimates that there are more than 6 million installations of MySQL worldwide, and reports an average of 50,000 downloads a day of MySQL installation software from its site and from mirror sites. The success of MySQL as a leading database is due not only to its price—after all, other cost-free and open source databases are available—but also its reliability, performance, and features.
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