✅ MySQL COMMIT

? Quick Overview

COMMIT is a transaction control command in MySQL that permanently saves all changes made during the current transaction. Once committed, the changes become visible to other sessions and cannot be undone.

? Key Concepts

COMMIT finalizes a transaction
Works only with transactional storage engines like InnoDB
Makes changes visible to other users
Cannot be rolled back after execution

? Syntax / Theory

? View Code Example

// Basic syntax of COMMIT
COMMIT;

? Code Example

? View Code Example

// Start a transaction and make changes
START TRANSACTION;

INSERT INTO orders (customer_id, order_date, total_amount)
VALUES (1, '2025-01-10', 2500);

// Save all changes permanently
COMMIT;

? Live Output / Explanation

After executing COMMIT, the inserted order is permanently stored in the database. Even if the connection closes or an error occurs later, this data will remain saved.

? Tips & Best Practices

Always use COMMIT after critical data modifications
Group related operations inside one transaction
Ensure AUTOCOMMIT is disabled when using manual commits
Use COMMIT only when all statements succeed

? Try It Yourself

Create a transaction and insert multiple rows
Commit the transaction and verify data persistence
Test behavior with and without AUTOCOMMIT
Compare COMMIT vs ROLLBACK results