取出分组之后每组前10条数据 oracle

发布时间：2020-12-12 18:49:31 所属栏目：百科来源：网络整理

导读：--取出x || '_' || y分组之后每组前10条数据 select * from ( select x,y,sj,ddbz, row_number() over (partition by x || '_' || y order by sj desc) rn from test where x is not null and y is not null ) where rn = 10 --行转列数据 select x|| '_' ||

--取出x || '_' || y分组之后每组前10条数据
select * from (
select x,y,sj,ddbz,
row_number() over (partition by x || '_' || y order by sj desc) rn
from test
where x is not null and y is not null

) where rn <= 10

--行转列数据

select x|| '_' || y jdwd,wm_concat(distinct DDBZ) from( select * from ( select x,row_number() over (partition by x || '_' || y order by sj desc) rn from qb_gissj where x is not null and y is not null ) where rn <= 10) group by (x || '_' || y)

（编辑：李大同）

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