On Wed, Dec 16, 2009 at 8:58 PM, Pradeep Chetal < Pradeep.Chetal@xxxxxxxxxxxxxx> wrote: > > > Hi, > > > > We had to install Oracle Standard Edition and we install Oracle Enterprise > Edition by mistake. If we need to undo, do we need to re-instal all CRS, > ASM, and DB - or can we just do the DB part? What are the minimal things > needed. > > Hi, Sorry you can downgrade from EE to SE. you have to export database, reinstall binaries for ASM and DB, create a new SE database and import data - see MOS note 139642.1 regards, Marcin Przepiorowski http://oracleprof.blogspot.com/