如何在条件中使用总和分组

Question

I have 3 columns in my table id, uid and value. I want to sum the values of each uid. I know the query but i want to use criteria.

Query:

 SELECT uid,SUM(value) FROM post GROUP BY uid;

How can i use this in hibernate criteria?

Answer 1

例如：

SELECT uid,SUM(value) FROM post GROUP BY uid HAVING SUM(value) > 100;

Answer 2

You can do it like this.

Criteria cr = session.createCriteria(Post.class); cr.setProjection(Projections.sum("value")); cr.setProjection(Projections.groupProperty("uid"));

Answer 3

amount and employee is column name to use using ProjectionsList:-
Criteria criteria=sessionFactory.getCurrentSession().createCriteria(EmpAdvance.class);
ProjectionList projectionList=Projections.projectionList();
projectionList.add(Projections.sum("amount"));
projectionList.add(Projections.groupProperty("employee"));
criteria.setProjection(projectionList);