COMMIT and ROLLBACK in MySQLA transaction in MySQL is a set of SQL statements written to perform a specific task. When the transaction is COMMIT, the changes made are saved permanently. ROLLBACK cancels all changes and reverts back the transaction to its state before COMMIT.
It is necessary to commit work in case of system crash.
COMMIT and ROLLBACK in MySQLCOMMIT : Commit statement commits the current transaction, which means making the changes permanent. A transaction may involve update and or delete and or insert statements.
ROLLBACK : Rollback statement rolls back the present transaction, which means cancelling a transaction’s changes.
The statement SET AUTOCOMMIT enables or disables the committing transactions automatically for the current session.