sqlserver 捕获错误信息

...BEGIN TRY    -- RAISERROR with severity 11-19 will cause execution to     -- jump to the CATCH block.    RAISERROR ('Error raised in TRY block.', -- Message text.               16, -- Severity.               1 -- State.               );END TRYBEGIN CATCH    DECLARE @ErrorMessage NVARCHAR(4000);    DECLARE @ErrorSeverity INT;    DECLARE @ErrorState INT;    SELECT         @ErrorMessage = ERROR_MESSAGE(),        @ErrorSeverity = ERROR_SEVERITY(),        @ErrorState = ERROR_STATE();    -- Use RAISERROR inside the CATCH block to return error    -- information about the original error that caused    -- execution to jump to the CATCH block.    RAISERROR (@ErrorMessage, -- Message text.               @ErrorSeverity, -- Severity.               @ErrorState -- State.               );END CATCH;...

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