#DateForumTypeThreadPost
124 Mar 2010 @ 06:40 PDTUDATopicTeradata - Oracle - Query Rewrite - Qualify & RankHi, I am working on Teradata to Oracle migration project. Select frm_crncycd,to_crncycd,exch_rate from exchange_rate group by 1,2 qualify(rank(frm_dt)) =1 Can someone explain what is the b...