its a bad idea!, they provide methods for taking copies of datafiles, i.ebegin / end backup and rman, why throw one more into the fray that wont work. Re-read that link and see why it wont work On 9/8/05, Lou Fangxin <anysql@xxxxxxxxx> wrote: > > I am thinking why oracle provide a such tool? It really give us a lots of > convinence. >