Question

In hibernate I have a table/class Question and a table/class Vote. Vote.questionId is a foreign key for Question.id.

I want to sort the question by the number of votes.

I am executing

session.createQuery("from Question q, Vote v where q.id = v.questionId group by q.id order by count(v) desc")

But I get “could not execute query”

Answer 1

If you’re using groups you’ll need to select fields specifically just like in SQL, so your query will look like:

select q.id, q.title, count(v) from Question q, Vote v where q.id = v.questionId 
 group by q.id, q.title
 order by count(v) desc

cheers!