RE: Optimizer Mode......how to choose the right one?

From: Veronica Levin <vlevin_at_victoria.com.ni>
Date: Tue, 07 Aug 2001 15:10:28 -0700
Message-ID: <F001.003637FF.20010807151643@fatcity.com>

It's correct,
I've only analyzed the schema where the data of the application is stored. Thanks for your comment!

Saludos,
Veronica Levin Enriquez
Administrador AIX
Compañía Cervecera de Nicaragua

-----Mensaje original-----

De: Miller, Jay [mailto:JayMiller_at_tdwaterhouse.com] Enviado el: Martes, 07 de Agosto de 2001 04:21 p.m. Para: Multiple recipients of list ORACLE-L Asunto: RE: Optimizer Mode......how to choose the right one?

You probably already thought of this, but I hope you aren't analyzing the SYS schema? This can cause terrible performance problems.

Jay Miller

-----Original Message-----

Sent: Tuesday, August 07, 2001 12:06 PM
To: Multiple recipients of list ORACLE-L

...

I tried FIRST_ROWS, analyzing the tables, but users claimed that performance was getting worse, so I chaged it to Choose. Always analyzing the tables....

but, everytime I analyze the tables, performance gets worse. Is this a normal behavior?

Any advice will be welcome!

thanks is advance,

Saludos,
Veronica Levin Enriquez
Administrador AIX
Compañía Cervecera de Nicaragua
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Author: Veronica Levin
  INET: vlevin_at_victoria.com.ni

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Author: Miller, Jay
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Author: Veronica Levin
  INET: vlevin_at_victoria.com.ni

Fat City Network Services    -- (858) 538-5051  FAX: (858) 538-5051
San Diego, California        -- Public Internet access / Mailing Lists


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