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lucca
 Post subject: HQL Query: FROM(SELECT...
PostPosted: Wed Jun 14, 2006 3:23 am 
Newbie

Joined: Wed Jun 14, 2006 3:17 am
Posts: 2
Hello!!

I'm spanish (sorry for my bad english). I need to do a HQL Query but I've an error with the "(" ...

I want to translate this:

SELECT a.id, b.name,....
FROM (
SELECT a.id, b.name, c.adress.....
FROM.......
......
)
GROUP BY a.id, b.name....

to HQL query

Can anyone of you help me??

Thank you.
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mchaia
 Post subject:
PostPosted: Wed Jun 14, 2006 2:02 pm 
Newbie

Joined: Tue Jun 13, 2006 12:12 pm
Posts: 3
Unfortunately HQL does not support subqueries in the FROM clause. An excerpt from Hibernate In Action (section 7.5.3):
Quote:
Subselects are an important and powerful feature of SQL. A subselect is a select query embedded in another query, usually in the SELECT, FROM, or WHERE clause.
HQL supports subqueries in the WHERE clause.


So you cannot write a subquery in the FROM clause. Maybe you can try a native SQL query.

Regards,
Martin
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lucca
 Post subject:
PostPosted: Wed Jun 14, 2006 2:27 pm 
Newbie

Joined: Wed Jun 14, 2006 3:17 am
Posts: 2
Ok! I needed to do it with HQL but, if it is not possible, i'll try to find another way to write the query. Thank you so mutch!!
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Francky
 Post subject:
PostPosted: Thu Jan 31, 2008 5:36 am 
Beginner
Beginner

Joined: Thu Jun 30, 2005 1:04 pm
Posts: 26
Hello

Is it possible now with Hibernate 3.2.4 ?

Thanks
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