Your very own TRY..CATCH
Alter dbo.cuspRideSummaryDelete to include an intentional error so we can see how the TRY CATCH block works.
Este ejercicio forma parte del curso
Writing Functions and Stored Procedures in SQL Server
Instrucciones del ejercicio
- Incorrectly assign
@DateParmanvarchar(30)data type instead of adate. - Include
@Erroras an optionalOUTPUTparameter. - Include the
DELETEstatement within theBEGIN TRY...END TRYblock. - Concatenate the
ERROR_NUMBER(),ERROR_SEVERITY(),ERROR_STATE(),ERROR_MESSAGE(),ERROR_LINE()within theBEGIN CATCH...END CATCHblock andSETto@Error.
Ejercicio interactivo práctico
Prueba este ejercicio y completa el código de muestra.
-- Alter the stored procedure
CREATE OR ALTER PROCEDURE dbo.cuspRideSummaryDelete
-- (Incorrectly) specify @DateParm
___ ___(30),
-- Specify @Error
___ nvarchar(max) = NULL OUTPUT
AS
SET NOCOUNT ON
BEGIN
-- Start of the TRY block
___ ___
-- Delete
DELETE FROM RideSummary
WHERE Date = @DateParm
-- End of the TRY block
___ ___
-- Start of the CATCH block
___ ___
SET @Error =
'Error_Number: '+ CAST(___() AS VARCHAR) +
'Error_Severity: '+ CAST(___() AS VARCHAR) +
'Error_State: ' + CAST(___() AS VARCHAR) +
'Error_Message: ' + ___() +
'Error_Line: ' + CAST(___() AS VARCHAR)
-- End of the CATCH block
___ ___
END;