欢迎您访问程序员文章站本站旨在为大家提供分享程序员计算机编程知识!
您现在的位置是: 首页  >  IT编程

sql 查询记录数结果集某个区间内记录

程序员文章站 2023-12-12 20:45:46
以查询前20到30条为例,主键名为id 方法一: 先正查,再反查 select top 10 * from (select top 30 * from tablename...
以查询前20到30条为例,主键名为id

方法一: 先正查,再反查
select top 10 * from (select top 30 * from tablename order by id asc) a order by id desc

方法二: 使用left join
select top 10 a.* from tablename a
left outer join (select top 20 * from tablename order by id asc) b
on a.id = b.id
where b.id is null
order by a.id asc

方法三: 使用not exists
select top 10 * from tablename a
where id not exists
(select top 20 * from tablename b on a.id = b.id)

方法四: 使用not in
select top 10 * from tablename
where id not in
(select top 20 id from tablename order by id asc)
order by id asc

方法五: 使用rank()
select id from
(select rank() over(order by id asc) rk, id from tablename) t
where rk between 20 and 30

中第五种方法看上去好像没有问题,查了下文档,当over()用于rank/row_number时,整型列不能描述一个列,所以会产生非预期的效果. 待考虑下,有什么办法可以修改为想要的结果.

上一篇:

下一篇: