tracking down hidden SQL???
From: Adric Norris <landstander668_at_gmail.com>
Date: Wed, 16 Oct 2013 13:47:25 -0500
Message-ID: <CAJueESq=VUXgmfFZfmX7Aj83ar2=kk491o8Ns2YsZKmtbP9zzQ_at_mail.gmail.com>
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 – why can’t 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$open_cursor either. Has anyone else encountered this situation? Any suggestions on where else I can look, to hopefully figure out what the heck it's doing? The database in question is Oracle Enterprise Edition 11.2.0.3.6 64-bit, running on a 3-node Solaris 10 SPARC cluster.
Date: Wed, 16 Oct 2013 13:47:25 -0500
Message-ID: <CAJueESq=VUXgmfFZfmX7Aj83ar2=kk491o8Ns2YsZKmtbP9zzQ_at_mail.gmail.com>
I'm trying to track down a SQL_ID which is *always* very prominent in the Top Activity view of OEM 12c. When I attempt to drill down into the specific statement, however, it always reports that "The SQL statement is not available". I can see it listed in [g]v$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$sql or AWR. I've also tried tracing some of the sessions which frequently show the SQL_ID in question, but couldn't find it listed in any tracefiles either It seems virtually identical to the issue Kerry Osborne blogged about in Hidden SQL – why can’t I find my SQL
Text?<http://kerryosborne.oracle-guy.com/2009/04/hidden-sql-why-cant-i-find-my-sql-text/>, with the very significant exception that the SQL_ID is never present in [g]v$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-lReceived on Wed Oct 16 2013 - 20:47:25 CEST