• My solution so far:

    select DISTINCt c.baseID, CASE WHEN Master_ID = c.BaseID THEN a.Duplicate_ID else Master_ID END

    from SCC as a

    cross apply (select MAX(master_ID) AS BaseID

    from SCC as b

    where b.duplicate_id = a.duplicate_id) as c

    ---------------------------------------------------------

    It takes a minimal capacity for rational thought to see that the corporate 'free press' is a structurally irrational and biased, and extremely violent, system of elite propaganda.
    David Edwards - Media lens[/url]

    Society has varying and conflicting interests; what is called objectivity is the disguise of one of these interests - that of neutrality. But neutrality is a fiction in an unneutral world. There are victims, there are executioners, and there are bystanders... and the 'objectivity' of the bystander calls for inaction while other heads fall.
    Howard Zinn