hibernate - Hibernate Criteria - 排除具有相同 id 但属性值不同的记录

Question

我正在尝试查找状态 = "a" 的记录，但排除同一个人有另一条状态为“b”的记录的记录

SELECT * FROM Person WHERE STATUS = 'a' AND Person_id NOT IN (SELECT Person_id FROM Person WHERE STATUS = 'b' AND Person_id IS NOT NULL)

感谢帮助

Answer 1

您可以通过DetachedCriteria使用 Criteria API 编写子查询：

DetachedCriteria dc = DetachedCriteria.forClass(Person.class);
dc.setProjection(Property.forName("id")); // select person_id
dc.add(Property.forName("status").eq("b")); // where status = 'b'

Criteria c = session.createCriteria(Person.class);
c.add(Property.forName("id").notIn(dc)); // where id not in (above subquery)
c.add(Property.forName("status").eq("a")); // and status = 'a'
c.list(); // TODO: handle results