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buffer cache and direct reads

From: utkanbir <hopehope_123_at_yahoo.com>
Date: 16 Jul 2004 08:00:05 -0700
Message-ID: <f6c90ebe.0407160700.7f1e3a94@posting.google.com>


Hi ,

i read in manual that parallel reads dont use buffer cache instead use pga memory . So when i issue a select statement in parallel , i expect to see the following things:

  1. since the read is parallel , buffer cache is not used , the data is not cached so there will be no entry in gv$bh for the table.
  2. gv$sessstat.name 'physical reads direct ' must be non zero .

Are these correct?

Kind Regards, Received on Fri Jul 16 2004 - 10:00:05 CDT

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