Yes, you can change it online. I do it occasionally (on 9i) to keep my lame maxextents report from getting false hits. Jared On Feb 6, 2008 8:45 AM, Ricardo Santos <saints.richard@xxxxxxxxx> wrote: > > Hello to you all, > first of all, sorry for such a dummy question, but ... > I have a small doubt about changing the MAZ SIZE property of a datafile, > on a database version 9.2.0.6(Windows 2003 Server): Can I change it with > the system online (ALTER DATABASE DATAFILE 'E:\ORACLE\ORADATA\SOMETHING.DBF' > AUTOEXTEND ON NEXT 1000M MAXSIZE 20000M;)? Or do I have to take any special > caution ? On Oracle 10g, I know I can, because I already did it before, but > on 9i ... > > > Thanks for all your attention. > > Best regards, > Ricardo. > -- Jared Still Certifiable Oracle DBA and Part Time Perl Evangelist