Undo (till 9i called rollback) segments are written to disk by DBWR
processes, just like all blocks of database files.
Same applies to the way undo is written to the redologs.
(Although: no experience with 9i yet but for what I heard of it nothing has
changed here compared to 8i)
Jargular <zclai_at_yahoo.com> schreef in berichtnieuws
8ae4ae9e.0204270719.22c0f769_at_posting.google.com...
> Hi,
>
> Does anybody know what is the process that writes to the Undo
> segments? under what condition the Undo buffers are flushed into Undo
> segments? how are the changes in Undo buffers recorded in the online
> Redologs? I seached Oracle9i documentation, it seems that they are not
> detailed in the docs. Anyone can help?
>
> really appreciated.
>
> Jargular
> zclai_at_yahoo.com
Received on Sat Apr 27 2002 - 16:51:55 CDT
