01 2013 档案

sql查询中自动统计某项数量
摘要：select * from dbo.Vehicle_Maintain_Details A inner join (select MaintainType as tempTypeName,count(ID) as num from dbo.Vehicle_Maintain_Details group by MaintainType) B on A.MaintainType=B.tempTypeName 阅读全文
posted @ 2013-01-09 17:59 +-/\-+ 阅读(974) 评论(0) 推荐(0)