The MySQL database server is the world's most popular open source database. Over five million installations use MySQL to power high-volume Web sites and other critical business systems - including industry-leaders like The Associated Press, Google, NASA, Sabre Holdings and Suzuki.
MySQL is an attractive alternative to higher-cost, more complex database technology. Its award-winning speed, scalability and reliability make it the right choice for corporate IT departments, Web developers and packaged software vendors.
A database is an organized collection of information that a computer uses to select and display data. Databases can help organize and enhance your site content. Sites with dynamic pages and/or shopping cart software often need an underlying database structure.
You can find more information on MySQL database at: www.MySQL.com