Did you try selecting from DBA_TEMPFILES as well? The tablespace may even be dropped. Try seeng if anybody has the file open with fuser or lsof. You can also try catching it with "strings controlfile.ctl|grep bigfile". If nobody is using it, you can remove it. -- Mladen Gogala A & E TV Network Ext. 1216 > -----Original Message----- > From: Jaehne, Richard S [mailto:JaehneRS@xxxxxxxxx] > Sent: Tuesday, November 16, 2004 3:38 PM > To: 'Oracle-L (E-mail) > Subject: Datafile info. > > > All,=20 > > I've got a large (4G.) datafile let's call him BIG.dbf on > one of my = database servers that I'm not sure what's living > in it. =20 > -- //www.freelists.org/webpage/oracle-l