SqlServer: Top N per Group
在sqlserver中可以这样显示分组前N个成员, 关键在row_number, partition
select * from
(select schoolmember_id, row_number() over(partition by school_id order by schoolmember_id ) as number from schoolmember) as a
where a.number < 3
在sqlserver中可以这样显示分组前N个成员, 关键在row_number, partition
select * from
(select schoolmember_id, row_number() over(partition by school_id order by schoolmember_id ) as number from schoolmember) as a
where a.number < 3
【推荐】编程新体验,更懂你的AI,立即体验豆包MarsCode编程助手
【推荐】凌霞软件回馈社区,博客园 & 1Panel & Halo 联合会员上线
【推荐】抖音旗下AI助手豆包,你的智能百科全书,全免费不限次数
【推荐】轻量又高性能的 SSH 工具 IShell:AI 加持,快人一步