FreeLists / oracle-l / OT : 9i Parsing Optimization

["Polarski, Bernard" <Bernard.Polarski@xxxxxxxxxxxxxx>]

A bit OT:
 
That would be a marvelous trap/question in the OCP exams, much clever
than the grammatical we usually get.
 
B. Polarski

  _____  

From: Bobak, Mark [mailto:Mark.Bobak@xxxxxxxxxxxxxxx] 
Sent: Thursday, 31 August, 2006 6:32 PM
To: Brandon.Allen@xxxxxxxxxxx; Polarski, Bernard; anjo.kolk@xxxxxxxxxxx;
ax.mount@xxxxxxxxx; oracle-l@xxxxxxxxxxxxx
Subject: RE: 9i Parsing Optimization


Right, session_cached_cursors can have an impact in reducing the amount
of work a parse does, but, any time a piece of client code makes a parse
call, Oracle MUST parse.  It may be a hard parse, a soft parse, or a
session cursor cache hit, but it is a parse, none the less.  The *ONLY*
way to reduce parsing is to change the program to parse less.
 
As others speculated previously, perhaps there's an ODBC or JDBC driver,
or something, that has an optimization that reduces the number of parse
calls, that was picked up on the upgrade from 8i to 9i.....
 
-Mark

-- 
Mark J. Bobak 
Senior Oracle Architect 
ProQuest Information & Learning