InnoDB is a robust transactional storage engine. InnoDB has been embraced by such Internet heavyweights as Yahoo!, Slashdot, and Google. It has been available to MySQL users since version 3.23.34 and has proved such a popular and effective solution for transactional applications that support has been enabled by default since version 4.0.
InnoDB table resources are managed using dedicated buffers, which can be controlled like any other MySQL configuration parameters. InnoDB also brings other great advances to MySQL by way of row-level locking and foreign key constraints.
InnoDB is developed and maintained by Innobase Oy, Inc., based out of Helsinki, Finland. You can learn more about the company and the great InnoDB project at http://www.innodb.com.
InnoDB Engine Related FAQs