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RE: Cache a table

From: Wolfgang Breitling <breitliw_at_centrexcc.com>
Date: Tue, 21 Oct 2003 13:54:26 -0800
Message-ID: <F001.005D3E4F.20031021135426@fatcity.com>


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

-- 
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-- 
Author: Wolfgang Breitling
  INET: breitliw_at_centrexcc.com

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Received on Tue Oct 21 2003 - 16:54:26 CDT

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