Re: How keep 8i standby no-more-than 30 minutes behind?

From: Howard J. Rogers <dba_at_hjrdba.com>
Date: Wed, 27 Mar 2002 17:40:19 +1100
Message-ID: <a7rpil$11j$1@lust.ihug.co.nz>

"Sean M" <smckeownNO_at_BACKSIESearthlink.net> wrote in message news:3CA15D01.CA09505E_at_BACKSIESearthlink.net...
> > > Ah, but 9i also allows you to use LGWR (as opposed to ARCH) to
transport
> > > the redo data to the standby site, which allows for the possibility of
> > > no data loss and no data divergence
> >
> > I'd also prefer to say "and/or" there. You can choose no data loss AND
no
> > data divergence, or just no data loss. Or even just 'do your best'!
> > DataGuard doesn't *mandate* no data divergence.
>
> Hence the use of the phrase "which allows for the the possibility of..."
>

possibility of (No Data Loss AND No Data Divergence) <> possibility of (No Data Loss AND/OR No Data Divergence)

It's the fact that they're independent configuration options that was important, not that there was "a possibility" of configuring something which could have been read as being a single option.

A minor point, I agree.

HJR Received on Wed Mar 27 2002 - 00:40:19 CST