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Re: Explain What is Oracle Logical IO

From: Tanel Poder <change_to_my_first_name_at_integrid.info>
Date: Sun, 24 Aug 2003 09:28:15 +0300
Message-ID: <3f485b00$1_1@news.estpak.ee> 





> I/O where you did not have to go to the disks (from Oracle's

> perspective).

>

> ie "I want read some data from a block, send out a read request - great

> it already in memory"




As an addition, even if you read only one row from a block, this might
result in more than one logical IOs, such is the case with consistent read
when undo blocks have to be get to build consitent image of a data block.



Tanel.
Received on Sun Aug 24 2003 - 01:28:15 CDT












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