Which Transact-SQL statement should you use?

You use Microsoft SQL Server 2012 to develop a database application. You create a stored procedure named DeleteJobCandidate. You need to ensure that if DeleteJobCandidate encounters an error, the execution of the stored procedure reports the error number.

Which Transact-SQL statement should you use?
A . DECLARE @ErrorVar INT;
DECLARE @RowCountVar INT;
EXEC DeleteJobCandidate
SELECT @ErrorVar = @@ERROR,
@RowCountVar = @@ROWCOUNT;
IF (@ErrorVar <> 0)
PRINT N’Error = ‘ + CAST(@@ErrorVar AS NVARCHAR(8)) + N’, Rows Deleted = ‘ + CAST(@RowCountVar AS NVARCHAR(8));
GO
B . DECLARE @ErrorVar INT;
DECLARE @RowCountVar INT;
EXEC DeleteJobCandidate
SELECT @ErrorVar = ERROR_STATE (),
@RowCountVar = @@ROWCOUNT;
IF (@ErrorVar <> 0)
PRINT N’Error = ‘ + CAST (ERROR_STATE () AS NVARCHAR (8)) + N’, Rows Deleted = ‘ + CAST(@RowCountVar AS NVARCHAR(8));
GO
C . EXEC DeleteJobCandidate
IF (ERROR_STATE () != 0)
PRINT N’Error = ‘ + CAST (@@ERROR AS NVARCHAR (8)) + N’, Rows Deleted = ‘ + CAST(@@ROWCOUNT AS NVARCHAR(8));
GO
D . EXEC DeleteJobCandidate
PRINT N’Error = ‘ + CAST (@@ERROR AS NVARCHAR (8)) + N’, Rows Deleted = ‘ + CAST(@@ROWCOUNT AS NVARCHAR(8));
GO

View Answer

Answer: A

Explanation:

Reference: http://msdn.microsoft.com/en-us/library/ms190193.aspx

Reference: http://msdn.microsoft.com/en-us/library/ms188790.aspx