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RE: Data Warehouse experts, a simple question for you| Outdated?

From: Jack Silvey <jack_silvey_at_YAHOO.COM>
Date: Thu, 23 May 2002 07:43:50 -0800
Message-ID: <F001.0046955E.20020523074350@fatcity.com>


Is there such a thing as being TOO knowledgable and well-read? I don't think so!

/jack

> Dennis,
>
> I have on my desk, all in varying stages of being
> read:
> Inmon's book Building the Data Warehouse (very
> understandable)
>
> Kimball's articles from his site and from the
> Intelligententerprise.com
> site (somewhat understandable, I think you need a
> base from which to
> read his articles). His books are on order and
> should arrive today
>
> Tim Gorman's book Essential Oracle8i Data
> Warehousing (this I haven't
> started, as Tim tells me to read it AFTER I have a
> basic understanding
> of data warehousing)
>
> The Oracle8i Data Warehousing documentation
> (actually pretty readable
> and understandable)
>
> Ya think I might be over-researching this stuff and
> panicking a bit?
>
> Rachel
>
> --- DENNIS WILLIAMS <DWILLIAMS_at_LIFETOUCH.COM> wrote:
> > Ian,
> >
> > - In the beginning was the data warehouse and
> yeah it was good. It
> > would
> > solve all corporate problems and would encompass
> all corporate data
> > so all
> > corporate minions would see the same data.
> > - But yeah it took so long to create the
> corporate data warehouse
> > that
> > management despaired and canceled the project. Or
> by the time the
> > monster
> > data warehouse came blinking and straining into
> the daylight all the
> > users
> > said that the company had evolved in the meanwhile
> and the warehouse
> > was
> > obsolete.
> > - So data warehouses gained a bad rep from
> corporate managers and
> > yeah
> > none would fain to propose the conception of a
> data warehouse for
> > fear of
> > castigation.
> > - Then some marketing interns bribed a DBA to
> send them data
> > weekly. And
> > they stored this data in a database and lo, their
> superiors were
> > impressed.
> > - Everyone was in awe of the marketing database,
> but none dared
> > tarnish it
> > by speaking the name which shall not be mentioned,
> so it was
> > christened a
> > "data mart".
> > - And lo, the data marts multiplied and were
> fruitful. And the DBA
> > cursed
> > the day she was weak and did give data to the
> marketing interns.
> > - Then another prophet did arise and did
> challenge the prophet
> > Kimball.
> > His name was Inmon. And he did claim to be the
> progenitor of data
> > warehouses. And therefore all should do data
> warehousing his way and
> > use his
> > terms.
> > - And great confusion arose over the land. And
> many debates ensued,
> > including some face to face between Inmon and
> Kimball. And terms such
> > as
> > Operational Data Store (ODS) were bandied about.
> > - And some said that queries against the ODS
> were acceptable and
> > others
> > deemed them forbidden. And some said that if it
> looks like a data
> > warehouse
> > and smells like a data warehouse it verily indeed
> is a data
> > warehouse.
> > - And consultants warred against consultants and
> did call the other
> > consultants ignoramuses in front of management
> such that nobody knew
> > what
> > anybody was talking about.
> > - And the DBAs said that creating a data
> warehouse or data mart was
> > not
> > nearly as hard as figuring out what to call it.
> >
> > The moral of the story is to figure out what you
> need to do and be
> > aware
> > that different authors use the same terms for
> different purposes and
> > coin
> > their own terms. Personally, I have understood
> everything that
> > Kimball has
> > written and have never been able to read one of
> Inmon's articles to
> > the end.
> > But maybe that is just me.
> > Dennis Williams
> > DBA
> > Lifetouch, Inc.
> > dwilliams_at_lifetouch.com
> >
> >
> > -----Original Message-----
> > Sent: Wednesday, May 22, 2002 2:38 PM
> > To: Multiple recipients of list ORACLE-L
> > Outdated?
> >
> >
> > Ian,
> >
> > Good question. I think that I've seen more
> recenct references in
> > articles
> > that state the current thinking of DW/DM. I'm
> sure that I've seen
> > Inmon
> > refer to them that way, or maybe it was Richard
> Winter?
> >
> > Anyway, I guess that part is a bit dated. There
> is so much good
> > information
> > in that book though, that it's still worth its
> weight in gold. You
> > won't
> > find too many
> > publications for $60 that will take you step by
> step through building
> > an
> > entire
> > data warehouse, including the infrastructure.
> >
> > Jared
> >
> >
> >
> >
> >
> >
> > "MacGregor, Ian A." <ian_at_SLAC.Stanford.EDU>
> > Sent by: root_at_fatcity.com
> > 05/21/2002 05:48 PM
> > Please respond to ORACLE-L
> >
> >
> > To: Multiple recipients of list
> ORACLE-L
> > <ORACLE-L_at_fatcity.com>
> > cc:
> > Subject: RE: Data Warehouse
> experts, a simple question
> > for
> > you| Outdated?
> >
> >
> > I am new to his books, three chapters in. The
> first release of the
> > "Data
> > Warehouse Toolkit" defines a data warehouse much
> as a data mart is
> > today.
> > Today we think of a data warehouse as having a
> highly normalized
>

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Author: Jack Silvey
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Received on Thu May 23 2002 - 10:43:50 CDT

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