JPA Select latest instance for each item

Question

Let\'s say I have a Meeting entity. Each meeting has a single attendee and a meeting date. Within my meeting table I may have multiple meetings for each attendee, with dif

Answer 1

I think I've got it with this query.

select m from Meeting m 
    where m.meetingDate = 
        (select max(m1.meetingDate) 
            from Meeting m1 
            where m1.attendee = m.attendee )
    and not exists 
        (select m2 from Meeting m2 
            where m2.attendee = m.attendee 
            and m2.meetingDate > m.meetingDate)