Postgresql SQL 选择每组的前面几条记录

发布时间：2020-12-13 17:02:02 所属栏目：百科来源：网络整理

导读：SELECT id FROM ( SELECT r.* FROM ( SELECT *,ROW_NUMBER() OVER(PARTITION BY monitor_group_key ORDER BY daykey DESC ) AS rn FROM spc.spc_run_status ) AS r WHERE r.rn =10

SELECT id FROM
(
SELECT r.* FROM (
SELECT *,ROW_NUMBER() OVER(PARTITION BY monitor_group_key ORDER BY daykey DESC ) AS rn FROM spc.spc_run_status
) AS r

WHERE r.rn <=10

（编辑：李大同）

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