InnoDB is a storage database for SQL. The ACID-transactions are also provided in InnoDB and also includes support for the foreign key. Initially owned by InnobaseOY now belongs to Oracle Corporation after it acquired the latter since 2005.

InnoDB is a storage engine for MySQL databases. It provides features such as ACID (Atomicity, Consistency, Isolation, Durability) compliance, transactions, foreign key support, and row-level locking. InnoDB is the default storage engine for MySQL as of version 5.5. It is designed to provide high performance and reliability for transactional workloads.