对于在执行存储过程中碰到的一些错误，如果未及时捕获或者说传递给前端应用程序来，在这样的情形下，故障的排查显得尤为困难。基于此，我们可以可以将这些错误信息记录到日志，同时也可以将其传递给前端应用程序。如本文的示例。

一、将错误信息记录到表

CREATE TABLE ErrorLog(         ID             INT IDENTITY (1,1) NOT NULL,         ErrorNumber    INT,         ErrorMessage   VARCHAR(1000),         ErrorSeverity  INT,         ErrorState     INT,         ErrorLine      INT,         ErrorProcedure VARCHAR(128),         ErrorDate      datetime);CREATE PROCEDURE CatchErrorDemoAS --相关业务逻辑    BEGIN TRY        SELECT  1 / 0;    END TRY--相关错误捕获    BEGIN CATCH        PRINT 'Error Number:' + CAST(ERROR_NUMBER() AS VARCHAR(10));        PRINT 'Error Serverity: ' + CAST(ERROR_SEVERITY() AS VARCHAR(10));        PRINT 'Error State: ' + CAST(ERROR_STATE() AS VARCHAR(10));        PRINT 'Error Procedure: ' + ERROR_PROCEDURE();        PRINT 'Error Line: ' + CAST(ERROR_LINE() AS VARCHAR(10));        PRINT 'Error Message: ' + ERROR_MESSAGE();        INSERT  INTO ErrorLog                ( ErrorNumber ,                  ErrorSeverity ,                  ErrorState ,                  ErrorProcedure ,                  ErrorLine ,                  ErrorMessage ,                  ErrorDate                )        VALUES  ( ERROR_NUMBER() ,                  ERROR_SEVERITY() ,                  ERROR_STATE() ,                  ERROR_PROCEDURE() ,                  ERROR_LINE() ,                  ERROR_MESSAGE() ,                  GETDATE()                )    END CATCH;--执行相关存储过程，并查询日志表，同时与系统消息表进行对比EXEC CatchErrorDemo;SELECT * FROM ErrorLog;

二、传递错误信息

CREATE PROC CatchErrorDemo2    @a INT ,    @rtn VARCHAR(20) OUTPUT ,    @rtn_message VARCHAR(200) OUTPUTAS    BEGIN        BEGIN TRY            DECLARE @result INT;             SET @result = 'A' + @a;        END TRY        BEGIN CATCH            SET @rtn = @@ERROR;            SET @rtn_message = 'Error Number: '                + CAST(ERROR_NUMBER() AS VARCHAR(10)) + ' Error Serverity: '                + CAST(ERROR_SEVERITY() AS VARCHAR(10)) + ' Error State: '                + CAST(ERROR_STATE() AS VARCHAR(10)) + ' Error Procedure: '                + ERROR_PROCEDURE() + ' Error Line: '                + CAST(ERROR_LINE() AS VARCHAR(10)) + ' Error Message: '                + ERROR_MESSAGE();        END CATCH;    END;GO--调用存储过程DECLARE @rtn INT ,    @rtn_message VARCHAR(200);EXEC CatchErrorDemo2 0, @rtn OUTPUT, @rtn_message OUTPUT;PRINT @rtn;PRINT @rtn_message;245Error Number: 245 Error Serverity: 16 Error State: 1 Error Procedure: CatchErrorDemo2 Error Line: 10 Error Message: 在将 varchar 值 'A' 转换成数据类型 int 时失败。