MySQLInnoDB
MySQLInnoDB is the transactional storage engine used by MySQL. It is designed to provide reliable data processing with features such as atomic transactions, row-level locking, multi-version concurrency control (MVCC), and support for foreign keys. InnoDB is the default storage engine in many modern MySQL releases, reflecting its emphasis on reliability and performance for transactional workloads.
InnoDB organizes data in tables with a clustered index on the primary key, so the data is
Durability and crash recovery are central to InnoDB. It uses a redo log to reproduce committed changes
Concurrency and referential integrity are managed through row-level locking and MVCC, enabling many transactions to proceed
Additional features include online DDL for non-disruptive schema changes, partitioning support, and encryption in newer MySQL