Thanks for the feedback - I'll have to check the number when I get time. I'm
fairly sure I used to get something from one of the 10,000 range and I was
fairly sure it was this one.
Regards
Jonathan Lewis
http://jonathanlewis.wordpress.com
@jloracle
________________________________
From: Michael Cunningham [napacunningham@xxxxxxxxx]
Sent: 18 November 2015 03:55
To: Jonathan Lewis; tanel@xxxxxxxxxxxxxx
Cc: oracle-l@freelists org
Subject: Re: Low level tracing of a session during soft parse
FYI, here is what I found
I could not get any information from 10270 trace while simply executing the sql
statement wither during a hard parse or soft parse.
From the Doc ID 296377.1
alter system set events 'immediate trace name cursortrace level 577, address
<hash_value>';
(levels 578-580 can be used for high level tracing (577=level 1, 578=level 2,
580=level 3)
-- this turns off tracing
alter system set events 'immediate trace name cursortrace level 2147483648,
address 1';
Turning off cursortrace worked for me on:
Oracle Database 12c Enterprise Edition Release 12.1.0.1.0 - 64bit Production
Thanks for the help,
Michael
On Tue, Nov 17, 2015 at 11:19 AM, Michael Cunningham
<napacunningham@xxxxxxxxx<mailto:napacunningham@xxxxxxxxx>> wrote:
Thank you gentlemen, I will look at both of these today.
On Tue, Nov 17, 2015 at 10:21 AM, Jonathan Lewis
<jonathan@xxxxxxxxxxxxxxxxxx<mailto:jonathan@xxxxxxxxxxxxxxxxxx>> wrote:
I think the event you want is 10270 and, from memory, the trace levels are a
bitmap so 1,2,4,8, etc. try 15 or 8191 for lots of information.
Regards
Jonathan Lewis
http://jonathanlewis.wordpress.com
@jloracle
________________________________
From: oracle-l-bounce@xxxxxxxxxxxxx<mailto:oracle-l-bounce@xxxxxxxxxxxxx>
[oracle-l-bounce@xxxxxxxxxxxxx<mailto:oracle-l-bounce@xxxxxxxxxxxxx>] on behalf
of Michael Cunningham
[napacunningham@xxxxxxxxx<mailto:napacunningham@xxxxxxxxx>]
Sent: 17 November 2015 17:14
To: oracle-l@freelists org
Subject: Low level tracing of a session during soft parse
Hello all,
I have failed in my attempts so far, but what I'm trying to do is trace a
session during a soft parse where I will see in the trace that the child cursor
was found in the library cache and there is no need for a hard parse. It's part
of a research interest of mine.
I'm still searching for blogs that have done this already, but have not found
one yet.
I've tried strace with no success
I'm also looking for trace events (like 10046) that will trace this info.
So far:
10053 won't show anything because the child cursor already has an execution plan
10046 level 12 does not show what I'm looking for
Any help is greatly appreciated.
--
Michael Cunningham
--
Michael Cunningham
--
Michael Cunningham
