MySql - InnoDb


InnoDB is the default storage engine (From MySQL 5.6)

It is:

  • a transaction-safe (ACID compliant)
  • that has commit, rollback, and crash-recovery capabilities

It supports:

  • FOREIGN KEY referential-integrity constraints.

It has

  • row-level locking (without escalation to coarser granularity locks)
  • and Oracle-style consistent nonlocking reads increase multi-user concurrency and performance.

InnoDB stores user data in clustered indexes to reduce I/O for common queries based on primary keys.

Documentation / Reference

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