我刚刚加入了一个项目,其中一个需求发生了变化,我想知道是否可以通过更改JQL来简单地更新功能。
我的数据库中有以下表格:
select * from project_organization;
ID PROJECT_ID ORG_ID
1 100 1000
2 100 2000
3 200 1000我们当前的JQL被翻译为:
select * from project_organization where org_id=2000
ID PROJECT_ID ORG_ID
2 100 2000我正在尝试编写一个查询,该查询将拉回以下行:
select po.* from project_organization po
LEFT JOIN project_organization po2
ON po.org_id=po2.org_id and ??????
ID PROJECT_ID ORG_ID
1 100 2000
3 200 null我已经尝试了几个左连接查询,但是到目前为止还不能得到我想要的结果。
有没有人能提供一些指导?
发布于 2013-09-14 11:20:38
SELECT po.id, po.project_id, po2.org_id
FROM `project_organizations` AS po
LEFT OUTER JOIN `project_organizations` AS po2 ON po.`project_id` = po2.`project_id` AND po2.`org_id` = 2000
GROUP BY project_id基于前面的评论。
https://stackoverflow.com/questions/18774631
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