Answer below: On Tue, Jul 19, 2011 at 11:36 AM, <Laimutis.Nedzinskas@xxxxxx> wrote: > Since the question was raised again, does anyone know the latest, > up-do-date explanation on how oracle multi versioning works. > > If you can wait until November, then Jonathan Lewis'es new book will be the best book ever to explain this :-) -- Tanel Poder http://blog.tanelpoder.com