Correcting a transaction
Today you have been given a script which is not correct. It was written by a colleague of yours who didn't know how to finish it. Your colleague tried to transfer $100 from account 1 to account 5, and register those movements into the transactions table.
You immediately realize there are several errors. SQL Server doesn't recognize the transaction statements it uses.
Can you correct the script?
Latihan ini adalah bagian dari kursus
Transactions and Error Handling in SQL Server
Petunjuk latihan
- Run the code to verify there are errors.
- Correct every error.
Latihan interaktif praktis
Cobalah latihan ini dengan menyelesaikan kode contoh berikut.
BEGIN TRY
START TRAN;
UPDATE accounts SET current_balance = current_balance - 100 WHERE account_id = 1;
INSERT INTO transactions VALUES (1, -100, GETDATE());
UPDATE accounts SET current_balance = current_balance + 100 WHERE account_id = 5;
INSERT INTO transactions VALUES (5, 100, GETDATE());
FINISH TRAN;
END TRY
BEGIN CATCH
UNDO TRAN;
END CATCH