| Oracle FAQ | Your Portal to the Oracle Knowledge Grid | |
 |
 | |||
| Oracle FAQ | Your Portal to the Oracle Knowledge Grid | |
|
| |||
Home -> Community -> Mailing Lists -> Oracle-L -> RE: Shared Pool info - V$sqlarea.
Oracle has no guarentee how long statistics and plans will be available for statements, depending on the activity of the database they may be there for 2 seconds they may be there for 2 weeks.
Products like Precise SQL and SQL Vision Lab help in that manor where they capture transactions and activity continuously in a non-intrusive manor. This is the only guarenteed way to get 99.999% of the transactions.
"Walking on water and developing software from a specification are easy if both are frozen."
Christopher R. Spence
Oracle DBA
Fuelspot
-----Original Message-----
Sent: Friday, June 01, 2001 12:16 PM
To: Multiple recipients of list ORACLE-L
DBAs
The statistics in v$sqlarea is getting flushed very often.
In the morning I found the a query which has more than 10,000 disk reads as the top one. But now the top most query with disk reads has not more than 100 disk reads. I have not bouncd the DB or flushed the shared pool. The overall library cache hit ratio is 97%.where us SQLAREA hit ratio is 60%.
Any Idea what could be reason?
TIA,
Raj
--
Please see the official ORACLE-L FAQ: http://www.orafaq.com
--
Author: Raj Gopalan
INET: raj.gopalan_at_netdecisions.co.uk
Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists --------------------------------------------------------------------To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists --------------------------------------------------------------------To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). Received on Fri Jun 01 2001 - 13:26:50 CDT
 |
 |