摘要: 例1: select Min(VisitTime),count(*) as Num from online group by datediff(day,VisitTime,getdate()) 例2: select count(*),Min(PayTime) from LimitBidBills w 阅读全文
posted @ 2020-07-31 11:08 代码沉思者 阅读(4504) 评论(0) 推荐(2) 编辑