Yep, I believe you are right but I found a reference to that syntax used by Arup Nanda on OTN <g>. I'm going to skip ahead just drop the mv and rebuild in about five minutes. -----Original Message----- From: Jared Still [mailto:jkstill@xxxxxxxxx] Sent: Tuesday, November 28, 2006 4:25 PM To: Freeman, Donald Cc: marquezemail@xxxxxxxxx; oracle-l Subject: Re: MODIFY Materialized View Definition without dropping it (or the MLog) after base table alter? On 11/28/06, Freeman, Donald <dofreeman@xxxxxxxxxxx> wrote: I was just planning on running create or replace mview as select * from source; create or replace materialized view? That works on view, but not on MV's. -- Jared Still Certifiable Oracle DBA and Part Time Perl Evangelist