Finding a statement in v$sqltext/WRH$_SQLTEXT
- From: <Mark.TEEHAN@xxxxxxx>
- To: <oracle-l@xxxxxxxxxxxxx>
- Date: Tue, 18 Nov 2008 14:50:49 +0800
Hi Listers, I havent posted for a long time so here goes! I've never really
understood why the statement I am looking for never seems to exist in the
various xx_SQLTEXT tables.
For example: while investigating a capture error:
Tue Nov 18 02:36:56 2008 C001: large txn detected (44115 LCRs), xid:
0x02a9.05c.00000414
I located the sql_id from v$session_longops, which confirmed that the session
rolled back
"Transaction Rollback: xid:0x02a9.05c.00000414 : 4780 out of 4780 Blocks done"
and it has a sql_id of "86gsuryqg5hh5".
However I cannot locate this statement in v$sqltext, or wrh$_sqltext. I assume
it aged out of v$sqltext (even though I started querying within minutes of the
error), and didn't exceed thresholds enough to be logged to wrh$_sqltext. Yet
capture though the statement evil enough to record it in the alert log.
Logminer is the only option, and all of the hassle that it entails. Should I be
looking elsewhere to find the statement? Has anyone modified thresholds
(successfully!) for WRH to try to log more SQL and make it a useful feature;
given its overhead?
Thanks
Mark
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