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Re: Re: Row level security and latch waits

From: Nuno Souto <nsouto_at_optusnet.com.au>
Date: Thu, 21 Aug 2003 07:00:24 -0800
Message-ID: <F001.005CBF91.20030821070024@fatcity.com>


Interesting. I didn't get Connor's reply...

Cheers
Nuno Souto
nsouto_at_optusnet.com.au
----- Original Message -----
To: "Multiple recipients of list ORACLE-L" <ORACLE-L_at_fatcity.com> Sent: Thursday, August 21, 2003 1:49 AM

> so in 9i dbms_rls increases the soft parses?
> >
> > From: Connor McDonald <hamcdc_at_yahoo.co.uk>
> > Date: 2003/08/20 Wed AM 11:21:59 EDT
> > To: Multiple recipients of list ORACLE-L <ORACLE-L_at_fatcity.com>
> > Subject: Re: Re: Row level security and latch waits
> >
> > My understanding was that the rls predicate was added
> > at parse time (hence the importance of the contexts
> > and avoiding things like 'sysdate')
> >
> > But also if I remember correctly, this behaviour was
> > changed in v9 to process the security function with
> > each execution (and hence probably increase the amount
> > of parsing going on).
> >
> > You might want to have a play the the
> > "_dynamic_policies" parameter (or something like that)
> > which can be used to revert the 8i behaviour (which
> > should reduce parsing to a degree)
> >
> > hth
> > connor
> >
> > --- Nuno Souto <nsouto_at_optusnet.com.au> wrote: >
> > ----- Original Message -----
> > >
> > > > - Use context values within predicates, as bind
> > > variables <<<< NOTE THIS
> > > > LINE.>>>>>

-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.net
-- 
Author: Nuno Souto
  INET: nsouto_at_optusnet.com.au

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Received on Thu Aug 21 2003 - 10:00:24 CDT

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