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Re: ora_check_sql in DBD::oracle

From: Bricklen Anderson <BAnderson_at_PresiNET.com>
Date: Thu, 05 Feb 2004 11:14:48 -0800
Message-ID: <40229628.20603@PresiNET.com>


Mladen Gogala wrote:

> In private communication with Cary Millsap, I was warned about the
> undocumented DBI handle attribute called "ora_check_sql" which was
> defaults to "1" and, oracle versions 8 and above, causes oracle to
> parse each statement twice ($sth=$dbh->prepare() is the first parse
> and 4sth->execute() was the second). On 1/27/2004. Tim Bunce delivered
> the new DBD::Oracle v1.15 and in the documentation one can find the
> following text:
> ***************************************************************************
> ora_check_sql
>
> If 1 (default), force SELECT statements to be described in prepare
> (). If 0, allow SELECT statements to defer describe until execute().
> (OCI8 and later only.)
>
> See "Prepare postponed till execute" for more information.

good catch, Mladen.
Just to back that up, I was poring over some trace files a month or so ago, and noticed the double parsing. Took some digging, but that was the cause.
Once we set {ora_check_sql => 0} in the prepare statement -- all gone.

Cheers!

-- 
Bricklen Anderson, Database Administrator
PresiNET Systems
http://www.PresiNET.com
Live Demo: https://www.presinet.com/secure/login
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Received on Thu Feb 05 2004 - 13:14:48 CST

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