hi,Jesse, Rich
i do not know which version oracle can do that , but =
from oracle 8 ,it is wrong
Best regards
yahoo id: feng_chunpei
A new dba from china
- from the mail-----
>While surfing Google for HP-UX questions, I ran across an Oracle=
guru page
>that says this:
>
>"Remember, when Oracle performs a full-table scan, the database=
blocks are
>read directly into the program global area (PGA), bypassing the=
data buffer
>RAM."
>
>It's been awhile since I took the Oracle7 DBA courses, but I=
have it stuck
>into my head that FTS data was plopped into the LRU end of the=
DB buffer
>cache's LRU list, instead of the MRU end.
>
>I gave up trying to look through my course material (my=
suggestion of an
>*INDEX* in the student guides apparently wasn't implemented) and=
MetaLink
>showed nothing. I couldn't find anything directly in the 8i=
docs, either,
>but a reference to the CACHE hint that says it causes FTSs to go=
to the MRU
>end of the buffer cache LRU list, but it doesn't say what=
happens by default
>and I didn't want to assume it was how I remembered it.
>
>So, is my memory just bad (it's not unusual) or what? Has this=
changed over
>versions? The article doesn't say what version of Oracle the=
author was
>referring to.
>
>TIA,
>Rich
>
>Rich Jesse System/Database Administrator
>rich.jesse_at_quadtechworld.com QuadTech, Sussex, WI USA
>----------------------------------------------------------------=
>Please see the official ORACLE-L FAQ: http://www.orafaq.com
>----------------------------------------------------------------=
>To unsubscribe send email to: oracle-l-request_at_freelists.org
>put 'unsubscribe' in the subject line.
>--
>Archives are at http://www.freelists.org/archives/oracle-l/
>FAQ is at http://www.freelists.org/help/fom-serve/cache/1.html
>----------------------------------------------------------------=
-
>
>.
=A1=A1=A1=A1=A1=A1=A1=A1=A1=A1=A1=A1=A1=A1=A1=A1
Please see the official ORACLE-L FAQ:
http://www.orafaq.com
To unsubscribe send email to: oracle-l-request_at_freelists.org
put 'unsubscribe' in the subject line.
--
Archives are at http://www.freelists.org/archives/oracle-l/
FAQ is at http://www.freelists.org/help/fom-serve/cache/1.html
-----------------------------------------------------------------
Received on Wed Apr 28 2004 - 09:31:09 CDT
