What is the COMMIT command in SQL?

The COMMIT command in SQL ends the current transaction and makes all changes made during this transaction permanent in the database. This means that the data becomes visible to other users and is saved even in case of a system failure. If a transaction was explicitly started (BEGIN TRANSACTION or START TRANSACTION), COMMIT ends that explicit transaction. If a transaction was not explicitly started (for example, autocommit is enabled by default), each individual INSERT, UPDATE, DELETE, or MERGE statement is considered a separate transaction and is automatically committed after successful execution.

Example usage:

-- Start a transaction
START TRANSACTION;

-- Make changes to the database
UPDATE users SET status = 'active' WHERE user_id = 101;
INSERT INTO logs (user_id, action) VALUES (101, 'status_updated');

-- Commit the changes
COMMIT;