SqlServer try catch 捕获触发器\存储过程异常,结合 transaction 事务

SoEasy~，贴上代码看所有

 ALTER trigger [dbo].[tgr_SG_Gathering_update]
 on [dbo].[SG_Gathering]
     for update --更新触发
 as
     --定义变量
     declare @fMoney float,
     @fQuantity float,
     @vShop varchar(20),
     @vEmpCode varchar(20),
     @vSPosition varchar(20),
     @vSPCode varchar(20),
     @SetID int,
     @Amount float,
     @Coupon varchar(20),
     @RJ varchar(10),
     @DiscountNum int;

     begin try
         begin transaction
             if (update(bCancel)) --bCancel日结动作
                 begin
                     --变量取值
                     select @RJ=bTotal,@fMoney=fMoney,@vShop=vShop,@vEmpCode=vEmpCode,@vSPCode=vSPCode,@fQuantity=fQuantity,@vSPosition=vSPosition
                     from inserted;

                     INSERT INTO [NoahERP].dbo.DiscountCouponPool( SetID,Coupon,CardType,Type,PP,MadeType,Rate,Price,Amount,StartDate,EndDate,
                                 CreateDate,UseDate,ModifyPerson,IsDel,ImgUrl,UsedImgUrl,OverImgUrl,ClothesCounts)
                         SELECT  S.ID,@Coupon,S.CardType,S.[Type],S.[PP],S.MadeType,P.Rate,P.Price,S.Amount,S.StartDate,S.EndDate,
                                 GETDATE(),NULL,'',0,P.ImgUrl,P.UsedImgUrl,P.OverImgUrl,S.ClothesCounts
                                 FROM [NoahERP].[dbo].[DiscountCouponSet] S
                                 left join  NoahERP.dbo.DiscountCouponPrice P on S.ID=P.SetID
                                 where  CONVERT(date, GETDATE()) >= CONVERT(date,S.StartDate) AND DATEADD(DAY,-1,CONVERT(DATE,GETDATE())) < CONVERT(date,S.EndDate)
                                 AND  S.IsStop = 0 And S.Type=1  AND S.ID=@SetID;
                 end
         commit transaction    --提交事务
     end try
     begin catch

     if(@@TRANCOUNT>0)
         begin
             rollback transaction;--出现错误回滚
         end
     --记录错误信息到[SG_GatheringLog]表
     insert into [dbo].[SG_GatheringLog](ErrorNumber,
                                         ErrorSeverity,
                                         ErrorState,
                                         ErrorProcedure,
                                         ErrorLine,
                                         ErrorMessage)
     select ERROR_NUMBER()  ErrorNumber,            --返回导致运行 CATCH 块的错误消息的错误号
            ERROR_SEVERITY()  ErrorSeverity,        --返回导致 CATCH 块运行的错误消息的严重级别
            ERROR_STATE()  ErrorState,            --返回导致 CATCH 块运行的错误消息的状态号
            ERROR_PROCEDURE()  ErrorProcedure,    --返回出现错误的存储过程或触发器名称
            ERROR_LINE()  ErrorLine,                --返回发生错误的行号
            ERROR_MESSAGE()  ErrorMessage        --返回导致 CATCH 块运行的错误消息的完整文本
     end catch