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?
Bu egzersiz
Transactions and Error Handling in SQL Server
kursunun bir parçasıdırEgzersiz talimatları
- Run the code to verify there are errors.
- Correct every error.
Uygulamalı interaktif egzersiz
Bu örnek kodu tamamlayarak bu egzersizi bitirin.
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