Using group by and having in a JPA query

问题

How would you do the following using the JPA query language?

select * from person where email in
(select email from person group by email having count(email)>1)

回答1:

Finally found a solution:

select p from Person p
where p.email in (
    select q.email
    from Person q
    group by q.email having count(q.email)>1)
order by p.email, p.id

回答2:

From this link, there's a explanation of the general structure of a JPA SELECT Query:

SELECT ... FROM ...
[WHERE ...]
[GROUP BY ... [HAVING ...]]
[ORDER BY ...]

来源：https://stackoverflow.com/questions/3439910/using-group-by-and-having-in-a-jpa-query