sql中的Tran和C#中的TransactionScope介绍

sql 中的Tran 俩种写法

第一种写法 try catch：

Begin TRY
    Begin Tran transaction

        DECLARE @ServiceOrderId INT
        SET @ServiceOrderId=73342
        DECLARE @ErrorCount  INT
        SET @ErrorCount = 0
        --调整积分通订单状态 支付完成
        UPDATE dbo.ServiceOrderNew
        SET OrderStatus = 2,UpdateDate = GETDATE()

        WHERE  ServiceOrderID = @ServiceOrderId

        --调整订单详细
        UPDATE dbo.ServiceOrderNewDetail
        SET DetailStatus = 2
        WHERE ServiceOrderID = @ServiceOrderId 

    Commit Tran transaction
    END TRY
        BEGIN CATCH
    ROLLBACK Tran transaction
END CATCH

第二种写法 用错误积累：

DECLARE @ServiceOrderId INT
SET @ServiceOrderId=73342

BEGIN TRAN  A
        DECLARE @ErrorCount  INT
        SET @ErrorCount = 0
        --调整积分通订单状态 支付完成
        UPDATE dbo.ServiceOrderNew
        SET OrderStatus = 2,UpdateDate = GETDATE()

        WHERE  ServiceOrderID = @ServiceOrderId

        SET @ErrorCount=@ErrorCount+@@error

        --调整订单详细
        UPDATE dbo.ServiceOrderNewDetail
        SET DetailStatus = 2
        WHERE ServiceOrderID = @ServiceOrderId

        SET @ErrorCount=@ErrorCount+@@error
        --付款状态
        UPDATE dbo.ScorePayApply
        SET ApplyStatus = 2
        WHERE  ScorePayApplyID = (SELECT TOP 1 ScorePayApplyID FROM ServiceOrderNewDetail WHERE ServiceOrderID = @ServiceOrderId)

         SET @ErrorCount=@ErrorCount+@@error

         SET @ErrorCount=@ErrorCount+@@error

  IF @ErrorCount=0
      BEGIN
        COMMIT TRAN  A
      END
  ELSE
      BEGIN
        ROLLBACK TRAN  A
      END 

第二 TransactionScope用法

 using (TransactionScope tran = new TransactionScope())
        {
            try
            {
                ServiceItemDataAccess.ServicesConfirmPayment(serviceOrderId, remark, serviceId);
                //提交事务
                tran.Complete();
            }
            catch (Exception ex)
            {
                return ex.ToString();
            }
            finally
            {
                tran.Dispose();
            }
        }

TransactionScope 是一个轻量级的事物，在using中，若程序报错，则自动回滚。tran.Complete();是指程序成功，提交。 tran.Dispose(); 释放和销毁。