摘要:
SELECT * FROM [dbo].[I_Friend] T1WHERE NOT EXISTS(SELECT 1 FROM [dbo].[I_Friend] T2 WHERE T1.UserId=T2.FriendUserId AND T1.FriendUserId=T2.UserId AND 阅读全文
摘要:
表结构: 方法1: select a.* from Table_Test as a where 3 > (select count(*) from Table_Test where Brand_Id = a.Brand_Id and AddTime > a.AddTime ) order by a. 阅读全文