Re: Separating data, index objects

From: IANAL_VISTA <IANAL_Vista_at_hotmail.com>
Date: Tue, 05 Jul 2005 01:30:35 GMT
Message-ID: <Xns9689BC4B0F899SunnySD@68.6.19.6>

"Mark A" <nobody_at_nowhere.com> wrote in
news:Q5WdnTxjxvegyFTfRVn-vA_at_comcast.com:

><qazmlp1209_at_rediffmail.com> wrote in message 
> news:1120490229.230731.282800_at_f14g2000cwb.googlegroups.com...

>> This is for Oracle version:9i.
>>
>> I understood that, separating data and index objects does not have
>> much impact on improving the performance. But, still I wanted to know
>> it just for information purpose.
>>

> Depends on your bufferpool hit ratio (which depends mostly on the size > of bufferpool relative to total amount of data/indexes).

I read into your reply above that under certain conditions separating data and index tablespaces can "impact on improving the performance.".

We agree that when a block is already in the SGA having separate tablespaces is moot.

Under what reproducible conditions does "separating data and index objects" impact performance to a measurable amount (please quantify)? Received on Mon Jul 04 2005 - 20:30:35 CDT