My rule of thumb is to use the most current *stable* version available (often not the newest). I would have never used 9.0.x nor 10.0.x for a mission critical system. I think (have seen) all the points made below could also be made about a new un-proven version of Oracle. Having said all that I would agree, choosing any version only to change it (upgrade) only months later is a waste of time. 9i has a lot of life left and is well known, well supported, and well documented (outside of Oracle Corp.) Chris Marquez Oracle DBA -----Original Message----- From: oracle-l-bounce@xxxxxxxxxxxxx on behalf of Dennis Williams Sent: Wed 6/29/2005 9:53 AM To: DGoulet@xxxxxxxx Cc: adar76@xxxxxxxxxxxx; Oracle-L@xxxxxxxxxxxxx Subject: Re: Choose database vesrion I heartily agree with Dick. When you are implementing a new system, there will be a lot of issues to resolve, so a few issues related to a new database version aren't so noticeable. Major database upgrades later are painful because everything is stable and you are introducing a risk of instability. Go with 10g and you probably won't need to upgrade until the next major Peoplesoft release. Dennis Williams On 6/29/05, Goulet, Dick <DGoulet@xxxxxxxx> wrote: > Rule of thumb, use the most current version if possible, otherwise your > looking at an upgrade in the somewhat near future. -- //www.freelists.org/webpage/oracle-l