There is a Metalink note 77574.1 entitled "Guidelines on When to Rebuild a B- Tree Index" which explains how to use "validate structure" and index_stats table. It is far too scientific to ever put into the script. Explanation
for the rule of thumb is simple: if number of index blocks is big that means
that the number of deleted entries is likely to be big, so let's rebuild it.
As I said, rebuilding indexes is not often necessary and is usually done for
all the wrong reasons. Quality of the rule of thumb, therefore, doesn't really
matter.


On 2003.09.22 03:19, Prem Khanna J wrote:
Read ur interesting reply for the query Mladen and learnt
a new "rule of thumb" from u today.

i sent the doc. to Raju ONLY adn NOT to the list.
it's just the body of the mail u r seeing there.

Regards,
Jp.

22-09-2003 15:49:40, Mladen Gogala <[EMAIL PROTECTED]> wrote:

>Attachments are stripped from the list messages.

>On 2003.09.22 02:24, Prem Khanna J wrote:
>> Hi Raju,
>> Check the doc. i have attached.



--
Please see the official ORACLE-L FAQ: http://www.orafaq.net
--
Author: Prem Khanna J
  INET: [EMAIL PROTECTED]

Fat City Network Services    -- 858-538-5051 http://www.fatcity.com
San Diego, California        -- Mailing list and web hosting services
---------------------------------------------------------------------
To REMOVE yourself from this mailing list, send an E-Mail message
to: [EMAIL PROTECTED] (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).


-- Mladen Gogala Oracle DBA -- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: Mladen Gogala INET: [EMAIL PROTECTED]

Fat City Network Services    -- 858-538-5051 http://www.fatcity.com
San Diego, California        -- Mailing list and web hosting services
---------------------------------------------------------------------
To REMOVE yourself from this mailing list, send an E-Mail message
to: [EMAIL PROTECTED] (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).

Reply via email to