select ec.id, cb.trackimage, cb.id as trackid ,ec.`ConfUrl`,ec.`field`,ec.ShortName,ec.up, cb.slug,cb.description,cb.TrackName,cb.relatedconf from callforabstracts as cb right join editConference as ec on cb.user = ec.id where cb.slug='clinical-oncology' and ec.up!='0' and cb.Category='MainTrack' AND ec.id = '' AND cb.status=1 ORDER BY ec.id DESC LIMIT 0,1