Re: Announcing New Blog
Date: Wed, 18 Jan 2006 12:04:45 GMT
David Cressey wrote:
> "Jay Dee" <ais01479_at_aeneas.net> wrote
>>Think of it as you do our understanding of gravity; once you get it >>right, there's no need to change it.
> Until you get more data.
> Consider the anomalous precession of mercury. The orbit of Mercury
> precesses for two reasons:
> the first is the grvitational attraction of the other planets. The second
> is the operation of gravity as theorized by Einstein, which differs slightly
> from that of Newton.
> Newton didn't err. The anomalous precession of mercury wasn't discovered
> until after Newton was dead. The discovery of this anomalous precession,
> among other discoveries, was what led to a radical upheaval in classical
> physics. The classical precession of Mercury, which is something like 99% of
> the precession, is explained perfectly well with Newton's laws.
Thanks for helping me make my point.
> Back to the subject at hand.
> What Dawn is doing is to try to gather the available data to try to explain
> what she sees as a disconnect between theory and practice in the comparison
> between database services centered around the RDM and parallel services
> centered around alternative formulations.
There are many "disconnects" and there is much more to "database services" than the model which most precisely and efficiently enables practitioners to record, manipulate, and retrieve data. But none of those "disconnects" or other "database services" have anything to do with the relational model. Received on Wed Jan 18 2006 - 13:04:45 CET