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Is MYSQL ACID compliant

The standard table handler for MySQL is not ACID compliant because it doesn't support consistency, isolation, or durability. However, the default table handler supports atomicity using table locks.

 MySQL includes components such as the InnoDB storage engine that adhere closely to the ACID model, 

 WHY? 

 MySQL has nine storage engine, but only two of those really matter to most users: MyIsam and InnoDB. MyIsam was the original engine, built for speed, but it lacked transactions; InnoDB has transactions and is speedier than MyIsam, which is why it’s the default storage engine

 InnoDB supports Row-level Locking
It's designed for maximum performance when processing high volume of data
It support foreign keys hence we call MySQL with InnoDB is RDBMS
It stores its tables and indexes in a tablespace
It supports transaction. You can commit and rollback with InnoDB

 On the contrary MYISAM supports Table-level Locking and designed for need of speed
It does not support foreign keys. It stores its tables, data and indexes in disk space using separate three different files. (tablename.FRM, tablename.MYD, tablename.MYI)

 Another problem is that you cannot commit and rollback with MYISAM. Once you issue a command it’s done.

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