Does the solution meet the goal?

Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution.

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You create a table named Products by running the following Transact-SQL statement:

You have the following stored procedure:

You need to modify the stored procedure to meet the following new requirements:

– Insert product records as a single unit of work.

– Return error number 51000 when a product fails to insert into the database.

– If a product record insert operation fails, the product information must not be permanently written to the database.

Solution: You run the following Transact-SQL statement:

Does the solution meet the goal?
A . Yes
B . No

View Answer

Answer: B

Explanation:

With X_ABORT ON the INSERT INTO statement and the transaction will be rolled back when an error is raised, it would then not be possible to ROLLBACK it again in the IF XACT_STATE() <> O ROLLBACK TRANSACTION statement.

Note: A transaction is correctly defined for the INSERT INTO ..VALUES statement, and if there is an error in the transaction it will be caughtant he transaction will be rolled back, finally an error 51000 will be raised.

Note: When SET XACT_ABORT is ON, if a Transact-SQL statement raises a run-time error, the entire transaction is terminated and rolled back. XACT_STATE is a scalar function thatreports the user transaction state of a current running request. XACT_STATE indicates whether the request has an active user transaction, and whether the transaction is capable of being committed.

The states of XACT_STATE are:

– 0 There is no active user transaction for the current request.

– 1 The current request has an active user transaction. The request can perform any actions, including writing data and committing the transaction.

– 2 The current request has an active user transaction, but an error hasoccurred that has caused the transaction to be classified as an uncommittable transaction.

References:

https://msdn.microsoft.com/en-us/library/ms188792.aspx

https://msdn.microsoft.com/en-us/library/ms189797.aspx