Oracle FAQ | Your Portal to the Oracle Knowledge Grid |
![]() |
![]() |
Home -> Community -> Mailing Lists -> Oracle-L -> RE: Cache a table
I suppose you mean "2% of db_block_buffers"
At 03:34 PM 10/21/2003, you wrote:
>John,Tom,
>
>There is a difference between pools {DEFAULT vs. KEEP and RECYCLE}.
>By default only DEFAULT pool use "mid-point" insert. It is controlled by
>hidden parameters
>_db_percent_hot_default (Percent of default buffer pool considered hot)
>default 50
>_db_percent_hot_keep (Percent of keep buffer pool considered
>hot) default 0
>_db_percent_hot_recycle (Percent of recycle buffer pool considered hot)
>default 0
>
>Table's attribute "CACHE" controls whether blocks read by FTS will be
>placed on LRU or MRU end of the LRU list, but only up to
>_small_table_threshold (threshold level of table size for forget-bit
>enabled during scan), default is 2% of db_block_size.
Wolfgang Breitling
Oracle7, 8, 8i, 9i OCP DBA
Centrex Consulting Corporation
http://www.centrexcc.com
-- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: Wolfgang Breitling INET: breitliw_at_centrexcc.com Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services --------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).Received on Tue Oct 21 2003 - 16:54:26 CDT
![]() |
![]() |