Select a Column in SQL not in Group By

Question

I have been trying to find some info on how to select a non-aggregate column that is not contained in the Group By statement in SQL, but nothing I\'ve found so far seems to

Answer 1

You can do this with PARTITION and RANK:

select * from
(
    select MyPK, fmgcms_cpeclaimid, createdon,  
        Rank() over (Partition BY fmgcms_cpeclaimid order by createdon DESC) as Rank
    from Filteredfmgcms_claimpaymentestimate 
    where createdon < 'reportstartdate' 
) tmp
where Rank = 1