I would search for any kind of logical replication. As Streams does not work in your setup, maybe the good old replication will work? I've set it up in Version 9 some years ago and as far as I remember there where no limitations about the 2 databases involved. It's even working across different Versions - and no additional $ needed. Also GoldenGate comes to my mind - but as I never tested it, I can't tell anything about it. hth Martin On Mon, Mar 26, 2012 at 18:26, kathryn axelrod <kat.axe@xxxxxxxxx> wrote: > Hi, > > I was hoping there might be some kind of unconventional process > similar to doing a rolling upgrade with a logical that would allow all > of the 64bit conversion steps to be run on the standby before > switchover. However, based on a few offline replies, I'm assuming > there is no such pure-DG option; thus my modified question is – > > Does anyone have any suggestions of how convert from 32bit to 64 with > no more downtime than the usual switchover blip (including ideas that > involve extra servers or 3rd party tools)? -- //www.freelists.org/webpage/oracle-l