在JPA查詢中使用group by和having

Question

如何使用JPA查詢語言執行以下操作？

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

Answer 1

終於找到了解決辦法：

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 

Answer 2

從this link，有一個JPA SELECT查詢的一般結構的解釋：

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