GO DECLARE @BDate datetime, @EDate datetime SET @BDate = '20190801' --上限 SET @EDate = '20190819 23:59:59' --下限 UPDATE [dbo].[Service] SET [Addtime] = DATEADD(second,ABS(CHECKSUM(NEWID()))%DATEDIFF(second,@BDate,@Edate),@BDate)
