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?
Diese Übung ist Teil des Kurses
Transactions and Error Handling in SQL Server
Anleitung zur Übung
- Run the code to verify there are errors.
- Correct every error.
Interaktive Übung
Versuche dich an dieser Übung, indem du diesen Beispielcode vervollständigst.
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