SQL2000与SQL2005下高效分页语句

SQL SERVER 2000:

select top 30 * from users
where userid<(select min(userid) from (select top 900000 userid from users order by userid desc) as tmp)
order by userid desc

SQL SERVER 2005:

select * from (
select row_number() over(order by userid desc) RowNumber,*
from (select top 900030 userid from users ) as t
) as tt
where RowNumber>900000

userid为索引字段，users为表名