Sql 相关查询:选择条件不最大的位置(内部查询中的条件)

Sql 相关查询:选择条件不最大的位置(内部查询中的条件),sql,select,sql-server-2000,aggregate-functions,exists,Sql,Select,Sql Server 2000,Aggregate Functions,Exists,我试图选择用户名和groupId重复的所有行,并且userId不是该用户名/groupId组合的最大userId。以下是我目前的代码: select * from userTable u where exists (select * from userTable u1 where userName <> '' and userName is not null and u.userName = u1.userName and u.groupId = u1

我试图选择用户名和groupId重复的所有行,并且userId不是该用户名/groupId组合的最大userId。以下是我目前的代码:

select *
from userTable u
where exists
    (select *
    from userTable u1
    where userName <> '' and userName is not null
    and u.userName = u1.userName and u.groupId = u1.groupId
    and u.userId <> max(u1.userId)
    group by userName, groupId
    having count(*) > 1)
order by userName
然而,该行:

and u.userId <> u1.max(userId)
给我一个错误


做这个查询的正确方法是什么?

我认为应该这样做:

SELECT  u.*
FROM    (
        SELECT  userName, groupId, MAX(userId) AS maxId
        FROM    userTable
        GROUP BY
                userName, groupId
        HAVING  COUNT(*) > 1
        ) q
JOIN    userTable u
ON      u.userName = q.userName
        AND u.groupId = q.groupId
        AND u.userId <> q.maxId
select t.*
from dbo.UserTable t
join ( select userName , groupID , maxUserID = max(userID)
       from dbo.UserTable x
       group by userName , groupID
       having count(*) > 1
     ) dupes on dupes.userName  = t.userName
            and dupes.groupID   = t.groupID
            and dupes.maxUserID > t.userID

一个小的输入错误,u1.maxuserId应该是maxu1.userId,但我认为这不能解决问题。@Rubish-谢谢!我会编辑它来修正打字错误。我正在打一个类似的答案。