java - JPA : How to compare two dates

Question

我需要在 JPQL 查询中获取两个日期之间的数据，但它不起作用。日期是整数，但我想与日期进行比较。这是部分查询，

谢谢!

     Query query = em.createQuery
    ("select p1 from Profile p1, Preference p2 where 
(p1.birthdate >= p2.agefrom and p1.birthdate <= p2.ageto and p2.preferenceid=:a)")
                                        .setParameter("a", profileid);


                TABLE Profile {
                profileid integer,
                birthdate date
                }

                TABLE Preference {
                preferenceid integer,
                agefrom integer,
                ageto integer
                }

Answer 1

使用BETWEEN

Query query = em.createQuery("select p1 from Profile p1, Preference p2 where 
   p1.birthdate BETWEEN p2.agefrom AND p2.ageto and p2.preferenceid=:a)")