Re: tracking down hidden SQL???

From: Kerry Osborne <kerry.osborne_at_enkitec.com>
Date: Thu, 17 Oct 2013 11:11:28 -0500
Message-Id: <41F8952F-9A77-43A8-BF33-B4DD11CC70D9_at_enkitec.com>



Hi Adric,

  V$OPEN_CURSOR hides some stuff. (as is the case with many of the v$ views) Try going after the underlying x$ (x$kgllk). I answered your question on my blog as well with a little more detail, but that may allow you to see what's happening.

Kerry Osborne
Enkitec
blog: kerryosborne.oracle-guy.com
twitter: https://twitter.com/KerryOracleGuy

On Oct 16, 2013, at 1:47 PM, Adric Norris wrote:

> I'm trying to track down a SQL_ID which is *always* very prominent in the
> Top Activity view of OEM 12c. When I attempt to drill down into the
> specific statement, however, it always reports that "The SQL statement is
> not available". I can see it listed in [g]v$session and ASH, and thereby
> determine that it's executed very frequently and completes quickly, but for
> some reason the beastie is never present in [g]v$sql or AWR. I've also
> tried tracing some of the sessions which frequently show the SQL_ID in
> question, but couldn't find it listed in any tracefiles either
> It seems virtually identical to the issue Kerry Osborne blogged about in Hidden
> SQL ł why canét I find my SQL
> Text?<http://kerryosborne.oracle-guy.com/2009/04/hidden-sql-why-cant-i-find-my-sql-text/>,
> with the very significant exception that the SQL_ID is never present in
> [g]v$open_cursor either. Has anyone else encountered this situation? Any
> suggestions on where else I can look, to hopefully figure out what the heck
> it's doing? The database in question is Oracle Enterprise Edition
> 11.2.0.3.6 64-bit, running on a 3-node Solaris 10 SPARC cluster.
>
> It isn't clear this activity is adversely affecting performance (the vast
> majority of waits seem to be *SQL*Net break/reset to client*), so this
> isn't an urgent issue. Mainly it's just annoying that I can't seem to
> identify anything of significance about what's occurring... wounded pride,
> and such. (-;
>
> Thanx!
>
> --
> "I'm too sexy for my code." -Awk Sed Fred
>
> --
> http://www.freelists.org/webpage/oracle-l
>
>

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Received on Thu Oct 17 2013 - 18:11:28 CEST

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