求一个能取中间某几条记录的SQL语句

[tomsmish]

有一张表,有一个uniqueid字段 唯一, 有一个字段 last_replytime,我想取得按last_replytime降序排列后,第5到10条记录,我是这样写的

select top 10 * from mytable where uniqueid not in(select top 4 uniqueid from mytable order by last_replytime desc) order by last_replytime desc

大这看这样写对吗?有什么更简洁更高效 的写法没

[liangCK]

取n到m行

1. 
select top m * from tablename where id not in (select top n id from tablename order by id asc/*|desc*/) 

2. 
select top m * into 临时表(或表变量) from tablename order by columnname -- 将top m笔插入到临时表 
set rowcount n   --只取n条结果
select * from 表变量 order by columnname desc 

3. 
select top n * from  
(select top m * from tablename order by columnname) a 
order by columnname desc 


4.如果tablename里没有其他identity列，那么： 
先生成一个序列,存储在一临时表中.
select identity(int) id0,* into #temp from tablename 

取n到m条的语句为： 
select * from #temp where id0 > =n and id0  <= m 

如果你在执行select identity(int) id0,* into #temp from tablename这条语句的时候报错,那是因为你的DB中间的select into/bulkcopy属性没有打开要先执行： 
exec sp_dboption 你的DB名字,'select into/bulkcopy',true 


5.如果表里有identity属性，那么简单： 
select * from tablename where identity_col between n and m  

6.SQL2005开始.可以使用row_number() over()生成行号
;with cte as
(
 select id0=row_number() over(order by id),* from tablename
)
select * from cte where id0 between n to m

[csdyyr]

select uniqueid
from (
select uniqueid,id=row_number() over (order by last_replytime desc) from mytable 
) t
where 5<=id and id<=10

[htl258_Tony]

[Quote=引用 1 楼 liangCK 的回复:]
SQL code取n到m行

1.
select top m * from tablename where id not in (select top n id from tablename order by id asc/*|desc*/)

2.
select top m * into 临时表(或表变量) from tablename order by columnname -- 将top m笔插入到临时表
set rowcount n --只取n条结果
select * from 表变量 order by columnname desc

3.
select top n * from
(select top m * from tablename order by columnname)…
[/Quote]
UP

[ChinaJiaBing]

select top 5 * from 
(select top 10 * from 表 order by uniqueid desc) 表
  

[tengjian1981]

;with cte as
(
 select id0=row_number() over(order by id),* from tablename
)
select * from cte where id0 between n to m