先排序，然后根据排序内联怎么做？比如……

[chenlm]

有这么一个表 pnamabbs_pri

rootid orderstr content time
1 null 21331 2003-01-08 19:30:10
2 null asdad 2003-01-08 19:39:10
3 null 213 2003-01-08 19:41:11
2 z 12312 2003-01-08 19:40:41
1 z asdes 2003-01-08 19:48:10

我想达到的效果是：
select rootid,max(time) as newesttime from pnamabbs_pri group by rootid order by newesttime
这样就出现了

rootid newesttime
1 2003-01-08 19:48:10
3 2003-01-08 19:41:11
2 2003-01-08 19:40:41

然后根据上面得出的结果（一定要根据上面得出的结果的rootid的顺序）

得到
rootid orderstr content time
1 null 21331 2003-01-08 19:30:10
1 z asdes 2003-01-08 19:48:10
3 null 213 2003-01-08 19:41:11
2 null asdad 2003-01-08 19:39:10
2 z 12312 2003-01-08 19:40:41

功能就是树状结构的bbs帖子的提升问题
原来我想用上面得到的排序后的结果和原来的表内联，可以行不通阿
sql说：除非同时指定了 TOP，否则 ORDER BY 子句在视图、内嵌函数、派生表和子查询中无效。
我该怎么办？

[愉快的登山者]

select A.* from pnamabbs_pri as A left join (
select rootid,max(time) as newesttime from pnamabbs_pri
group by rootid order by newesttime) as B
on A.rootid = B.rootid
order by B.newesttime, A.time

[愉快的登山者]

select A.* from pnamabbs_pri as A left join (
select rootid,max(time) as newesttime from pnamabbs_pri
group by rootid) as B
on A.rootid = B.rootid
order by B.newesttime, A.time

[chenlm]

出错了~和我用内联的时候一样的错误

服务器: 消息 1033，级别 15，状态 1，行 3
除非同时指定了 TOP，否则 ORDER BY 子句在视图、内嵌函数、派生表和子查询中无效。

[chenlm]

to:tj_dns(愉快的登山者)
第一个会出错，见上

第二个达不到效果

[愉快的登山者]

去掉order by newesttime。

[hjhing]

select A.* from pnamabbs_pri as A left join (
select rootid,max(time) as MaxTime from pnamabbs_pri
group by rootid) as B
on A.rootid = B.rootid
order by B.MaxTime desc, A.time



經過測試，沒有錯的！

[chenlm]

3x:)

[愉快的登山者]

select rootid,max(time) as newesttime from pnamabbs_pri group by rootid order by newesttime
出现的是：
rootid newesttime
----------- ---------------------------
2 2003-01-08 19:40:41.000
3 2003-01-08 19:41:11.000
1 2003-01-08 19:48:10.000

(3 row(s) affected)

select rootid,max(time) as newesttime from pnamabbs_pri group by rootid order by newesttime desc
出现的是：
rootid newesttime
----------- ---------------------------
1 2003-01-08 19:48:10.000
3 2003-01-08 19:41:11.000
2 2003-01-08 19:40:41.000

(3 row(s) affected)

[chenlm]

谢谢2位高手~ok了~~~：）

[lizongqi]

:)