How do I implement transactions in SQL?

How do I implement transactions in SQL?

To implement transactions in SQL, you can use the BEGIN TRANSACTION, COMMIT, and ROLLBACK statements.

Can you give me an example of how to use these statements?

Sure! Here's a simple example:

BEGIN TRANSACTION;
INSERT INTO accounts (user_id, balance) VALUES (1, 100);
UPDATE accounts SET balance = balance - 50 WHERE user_id = 2;
COMMIT;

If something goes wrong, you can use ROLLBACK to undo the changes.

What happens if I forget to use COMMIT?

If you forget to use COMMIT, the changes made during the transaction will not be saved to the database, and they will be lost when the session ends.