RE: Q about Oracle Optimizer

It simply uses RBO instead.

g

-----Original Message-----
Sent: Thursday, August 16, 2001 9:46 AM
To: Multiple recipients of list ORACLE-L

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

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