SQL 2005使用PARTITION and Rank实现group by to

发布时间：2020-12-12 12:39:21 所属栏目：MsSql教程来源：网络整理

导读：DEMO1：select * from ( select Player,Year,HomeRuns,Rank() over (Partition BY Player order by HomeRuns DESC,Year DESC) as Rank from Batting ) tmp where Rank = 1 DEMO2：WITH ttts AS ( Select JournalID,ParentID,RANK() OVER (partition by Parent

DEMO1：select * from
(
select Player,Year,HomeRuns,Rank() over (Partition BY Player order by HomeRuns DESC,Year DESC) as Rank
from
Batting
) tmp
where Rank = 1
DEMO2：WITH ttts AS (

Select JournalID,ParentID,RANK() OVER (partition by ParentID orDER BY JournalID asc) AS rt From Journal_Category Where ParentID in (Select JournalID from Journal_Category where ParentID = 1) Group By ParentID,JournalID

)

Select * from ttts where ttts.rt <=1

轻松实现Group By Top

（编辑：李大同）

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