RE: How does Oracle keep B-tree indexes to 3 levels?
- From: "Prem Khanna J" <jprem@xxxxxxxxxxxx>
- To: <oracle-l@xxxxxxxxxxxxx>
- Date: Fri, 6 Feb 2004 13:57:29 +0900
Hi Cary & List ,
i have been long trying to get a pictorial representation
of a simple b-tree index and how it changes as the
index grows . Though i read the docs , still i'm not
able to say "okay , this is how b-tree index works" .
Has anyone got something like what i'm looking for ?
Just curious to know :
Cary , what does * Nullius in verba * mean ?
Regards,
Prem.
>>-----Original Message-----
>>From: oracle-l-bounce@xxxxxxxxxxxxx
>>
>>You get a new level only if the parent node splits propagate
>>all the way
>>to the index root node. Jonathan Lewis and Steve Adams have some good
>>tests in their courses that use block dumps to show how Oracle
>>redistributes keys in branch blocks when nodes split.
>>
>>Yes, Oracle index nodes are one block apiece.
>>Cary Millsap
>>* Nullius in verba *
----------------------------------------------------------------
Please see the official ORACLE-L FAQ: http://www.orafaq.com
----------------------------------------------------------------
To unsubscribe send email to: oracle-l-request@xxxxxxxxxxxxx
put 'unsubscribe' in the subject line.
--
Archives are at //www.freelists.org/archives/oracle-l/
FAQ is at //www.freelists.org/help/fom-serve/cache/1.html
-----------------------------------------------------------------
Other related posts:
