COMMIT
committing a transaction.
Overview
COMMIT successfully ends the current transaction and makes its changes durable. Before committing, inspect affected rows, critical query results, and business constraints because an ordinary ROLLBACK normally cannot undo a completed commit. Application code must also handle commit failures instead of assuming the call always succeeds.
Basic syntax
COMMIT;Examples
COMMIT example
End the tutorial transaction and return its committed state, showing COMMIT as the explicit completion point.
Run result
| statement | effect | note |
|---|---|---|
| COMMIT | Commit the current transaction, make its changes durable, and end the transaction. | Actual behavior also depends on the storage engine, isolation level, and session state. Test lock waits, concurrency, and failure recovery in the target MySQL environment. |
Common issues
Finish with COMMIT to persist changes or ROLLBACK to undo them; do not leave transactions open.
No. Transactions protect operation consistency, while backups support disaster recovery.
Uncommitted work may retain locks, so keep transactions short and access resources in a consistent order.
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