[英]How to use group by with sum in criteria
我的表ID,UID和值中有3列。 我想对每个uid的值求和。 我知道查询,但我想使用条件。
查询:
SELECT uid,SUM(value) FROM post GROUP BY uid;
如何在休眠条件下使用此功能?
例如:
SELECT uid,SUM(value) FROM post GROUP BY uid HAVING SUM(value) > 100;
您可以这样做。
条件cr = session.createCriteria(Post.class); cr.setProjection(Projections.sum(“ value”)); cr.setProjection(Projections.groupProperty(“ uid”));
数量和雇员是使用ProjectionsList使用SUM和GROUP BY的列名称:-
Criteria条件= sessionFactory.getCurrentSession()。createCriteria(EmpAdvance.class);
ProjectionList projectionList = Projections.projectionList();
projectionList.add(Projections.sum(“ amount”)));
projectionList.add(Projections.groupProperty(“ employee”));
条件.setProjection(projectionList);
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