Câu 12: 70-461: MCSA Querying Microsoft SQL Server 2012/2014

You use Microsoft SQL Server 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?

1. 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 — đáp án hiện tại
2. 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
3. C. EXEC DeleteJobCandidate IF (ERROR_STATE() != 0) PRINT N'Error = ' + CAST(@@ERROR AS NVARCHAR(8)) + N', Rows Deleted = ' + CAST(@@ROWCOUNT AS NVARCHAR(8)); GO
4. D. EXEC DeleteJobCandidate PRINT N'Error = ' + CAST(@@ERROR AS NVARCHAR(8)) + N', Rows Deleted = ' + CAST(@@ROWCOUNT AS NVARCHAR(8)); GO