RE: Why "Separating Data and Indexes improves performance" is a m yth?

From: Jamadagni, Rajendra <Rajendra.Jamadagni_at_espn.com>
Date: Sun, 25 Apr 2004 10:45:59 -0400
Message-ID: <A186CBDC8B1D61438BC50F1A77E91F73075BD4A4@xchgbrsm1.corp.espn.pvt>

We do see index_skip scans ... Few times a day ...=20

Raj

---

--------=20

Rajendra dot Jamadagni at nospamespn dot com=20 All Views expressed in this email are strictly personal.=20 select standard_disclaimer from company_requirements;=20 QOTD: Any clod can have facts, having an opinion is an art !

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

From: oracle-l-bounce_at_freelists.org
[mailto:oracle-l-bounce_at_freelists.org] On Behalf Of Mladen Gogala Sent: Friday, April 23, 2004 2:20 PM
To: oracle-l_at_freelists.org
Subject: Re: Why "Separating Data and Indexes improves performance" is a m yth?

Another situation in which fast full scans appear is a report from a reference table, like a list of names of all employees (artificial example, but I have no better at the moment). Those are relatively rare, but they are regular. Speaking of index scans, does anybody here sees skip scans? Few months ago I've had a lengthy discussion with Wolfgang about INDEX_SS, but I have to confess that I've never seen them in real life.

--

Mladen Gogala
Oracle DBA

---

Please see the official ORACLE-L FAQ: http://www.orafaq.com

---

To unsubscribe send email to: oracle-l-request_at_freelists.org put 'unsubscribe' in the subject line.
--

Archives are at http://www.freelists.org/archives/oracle-l/ FAQ is at http://www.freelists.org/help/fom-serve/cache/1.html

---

Received on Sun Apr 25 2004 - 09:43:20 CDT