zwei1121

摘要： 更新距离：update Train_Number set Distance=t.Distancefrom Train_Number,(select TrainNum,max(cast(Distance as int)) as Distance from Train_NumDetailgroup by TrainNum)as tWHERE Train_Number.TrainNum=t.TrainNum更新运行时间：create PROCEDURE [dbo].[P_SetTrainNumDetailRunTime]ASBEGINdeclare @StartTime nvarchar(50)de 阅读全文