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ajay.rivendell
 Post subject: How to use distinct with multiple columns in Criteria API
PostPosted: Wed May 26, 2010 2:49 am 
Newbie

Joined: Thu Dec 17, 2009 11:43 am
Posts: 6
Hi,

How can I write below query in criteria API?

Code:
select distinct col1, col2, col3
from some_table;


*Note that I want distinct to work on all 3 columns.

I can use Projections.projectionList() to specify 3 columns to fetch, but how can I apply distinct to all?

-Regards
Ajay
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ivirani
 Post subject: Re: How to use distinct with multiple columns in Criteria API
PostPosted: Tue Jun 01, 2010 11:22 am 
Regular
Regular

Joined: Tue May 11, 2010 5:50 pm
Posts: 54
Location: Norman, Ok, U.S.A
Try something like this
Code:
ProjectionsList projections = Projections.projectionList();
projections.add(Projections.count(col0));
projections.add(projection.count(col1...);

criteria.setProjection(Projections.distinct(projections))

see if this would work
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