Sams Teach Yourself MySQL in 21 Days, Second Edition

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`ROLLBACK`

Description: Concludes a transaction made out of autocommit mode (a series of queries following a BEGIN) and discards any changes without writing to the database on disk.

Limitations: Transaction-safe tables (BDB and InnoDB). With other table types, queries following BEGIN will be committed to the database automatically.

Description in: Day 17

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