yep -- the famous (but less well known) Oracle feature "write consistency" search Tom Kytes's website for the abover term, and you'll find a few interesting threads. or better, try to attend one of his public seminars he is teaching; this happens to be one of his favorite topics ;-)
-- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- --- From: Andrew Allen 26-Apr-05 15:29 Subject: Re : User rollbacks higher then user commits
Could be blocked updates causing the rollbacks. I do not know the source of the stat in the statspack report, but I will bet that this is it.