my email states that in oracle this isnt true. HOWEVER, what about other databases? 
> 
> From: Mladen Gogala <[EMAIL PROTECTED]>
> Date: 2003/10/02 Thu PM 12:34:33 EDT
> To: Multiple recipients of list ORACLE-L <[EMAIL PROTECTED]>
> Subject: Re: Physical I/O and databases other than oracle
> 
> On Thu, 2003-10-02 at 11:44, Garry Gillies wrote:
> > > Im reading an academic book on databases and it states that Physical I/O 
> 
> > Eh?
> > What IS the primary bottleneck in tuning Oracle?
> 
> Cache hit ratio. You tune the buffer cache hit ratio (BCHR) and your job
> is done. Database with 99.9% BCHR must be OK.
> 
> 
> 
> 
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> Author: Mladen Gogala
>   INET: [EMAIL PROTECTED]
> 
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