save undo block & save undo header

From: Benhayoune khalid <benhayoune_at_maroclear.co.ma>
Date: Mon, 15 May 2000 10:45:22 -0000
Message-Id: <10498.105632@fatcity.com>

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Excuse my poor English !

> Could anybody explain me the meaning of the statistics 'save undo
> block' and 'save undo header' in the v_$waitstat view ?
> 
	Should i consider those stats while tuning the contention for

rollback segments ?

> Thanks.
> 
> Khalid.
> 
> ------------------------------------------------------------------
> K.Benhayoune
> System engineer/DBA
> MAROCLEAR
> Phone : 212-2-48-49-49
> Fax : 212-2-48-67-03
> Address : 216, BD ZERKTOUNI, 5 eme etage
>               Casablanca (Morocco)
>

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Excuse my poor English ! 


Could anybody explain me the =
meaning of the statistics 'save undo block' and 'save undo header' in = the v_$waitstat view ?

Should i consider those stats =
while tuning the contention for rollback segments ?


Thanks.


Khalid.


<FONT COLOR=3D"#008000" SIZE=3D2 FACE=3D"Comic Sans =

MS">------------------------------------------------------------------</=

FONT>
 K.Benhayoune
 System =
engineer/DBA
 MAROCLEAR
 Phone : =
212-2-48-49-49
 Fax : =
212-2-48-67-03
 Address =
: 216, BD ZERKTOUNI, 5 eme etage
            &n= bsp;  Casablanca (Morocco) Received on Mon May 15 2000 - 05:45:22 CDT