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ottaviomigliaccio
 Post subject: Translate query
PostPosted: Fri Nov 05, 2010 7:42 am 
Newbie

Joined: Fri Nov 05, 2010 5:42 am
Posts: 3
Hello,
How do I translate this query in hibernate?
Maybe using Criteria or Query?

Code:
SELECT *
    FROM T_PROVINCIA A
    WHERE
         A.IDE_REG IN (1,2,3,4)   AND
         A.IDE_PRV IN (SELECT B.IDE_PRV FROM T_PROVINCIA B
                                WHERE A.IDE_REG = B.IDE_REG AND ROWNUM <= 3)
     ORDER BY A.IDE_REG, A.IDE_PRV


I should select a maximum of 3 provinces from each region in input.

Thanks
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r
 Post subject: Re: Translate query
PostPosted: Fri Nov 05, 2010 11:14 am 
Senior
Senior

Joined: Fri Oct 08, 2010 8:44 am
Posts: 130
Just write HQL that does the same thing. What is the problem you need to help at?
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ottaviomigliaccio
 Post subject: Re: Translate query
PostPosted: Fri Nov 05, 2010 11:21 am 
Newbie

Joined: Fri Nov 05, 2010 5:42 am
Posts: 3
r wrote:
Just write HQL that does the same thing. What is the problem you need to help at?


I wanted to apply the Criteria.

However, in HQL, I can not write "rownum <= 3".

Thanks
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r
 Post subject: Re: Translate query
PostPosted: Fri Nov 05, 2010 11:27 am 
Senior
Senior

Joined: Fri Oct 08, 2010 8:44 am
Posts: 130
You can write something like following in HQL:

Code:
from Region region where region.id in (1,2,3,4) and size(region.provinces) <= 3


I hate Criteria, so I won't be able to help with them to you :)
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