sqlserver2000时的分页思路
1.分页查询时,首先将数据排序
select * from MyStudent order by fid desc
2.取第一页数据
select Top 5 * from MyStudent order by fid desc
3.取第二页数据
select Top 5 * from MyStudent
where fid not in
(
select Top 5 * from MyStudent order by fid desc
)
order by fid desc
4.取第三页的数据
select Top 5 * from MyStudent
where fid not in
(
select Top (2*5) * from MyStudent order by fid desc
)
order by fid desc
4.取第四页的数据
select Top 5 * from MyStudent
where fid not in
(
select Top (3*5) * from MyStudent order by fid desc
)
order by fid desc
sqlserver2005时的分页思路
--第7页数据
select * from
(
select *,row_number() over(order by fid desc) as runumber
from MyStudent
) as tbl
where tbl.rnumber between 6*5+1 and 7*5
--第20页数据
select * from
(
select *,row_number() over(order by fid desc) as runumber
from MyStudent
) as tbl
where tbl.rnumber between 19*5+1 and 20 *5
--开窗函数与聚合函数一起使用,可以让聚合函数对每一条数据都计算一次
select *,count(*) over() as 总条数 from MyStudent