| Oracle FAQ | Your Portal to the Oracle Knowledge Grid | |
 |
 | |||
| Oracle FAQ | Your Portal to the Oracle Knowledge Grid | |
|
| |||
Home -> Community -> Mailing Lists -> Oracle-L -> Q about Oracle Optimizer
Hi list,
a quick question about oracle optimizer.
a customer has database migrated from 7.3.4 to 8.1.6 on AIX. Data was transfered via full exp/imp. After migration the performance of the new database is very poor. I looked at the parameters and saw that no object is analyzed. So now me question:
What does oracle optimizer do, if there are no statistics on all objects. Optimizer level is choose.
Volker Schön
E-Mail: mailto:v.schoen_at_inplan.de
http://www.inplan.de
--
Please see the official ORACLE-L FAQ: http://www.orafaq.com
--
Author: Schoen Volker
INET: v.schoen_at_inplan.de
Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Liststo: 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 Thu Aug 16 2001 - 02:51:57 CDT
--------------------------------------------------------------------
To REMOVE yourself from this mailing list, send an E-Mail message
 |
 |