As far as I remember, XDB has database triggers on before creating and dropping objects. On Mon, Oct 20, 2014 at 9:46 PM, Juan Carlos Reyes Pacheco < jcdrpllist@xxxxxxxxx> wrote: > Thank you Seth, > This is a new installation. > anyway on 12c I understood it is mandatory. > > 2014-10-20 11:47 GMT-04:00 Seth Miller <sethmiller.sm@xxxxxxxxx>: > > Juan, >> >> Do not remove XDB. So many components rely on this that you will start >> seeing weird behavior over time if this component is not there. >> >> Seth Miller >> >> > -- Best regards, Sayan Malakshinov Senior performance tuning engineer PSBank http://orasql.org