Re: Storing derived and derivable data
From: Bob Badour <bbadour_at_pei.sympatico.ca>
Date: Fri, 28 Apr 2006 14:24:47 GMT
Message-ID: <PAp4g.67584$VV4.1291917_at_ursa-nb00s0.nbnet.nb.ca>
>>I am referring to any notation anywhere, perhaps in a conceptual or
>>logical data model, for example. While there are terms to distinguish
>>between a base table and a materialized view, for example, I have not
>>found the right terms to distingish a derived materialized attribute
>>from on that is not derived from values in the database. I would like
>>to write about such attributes and am not finding terminology or
>>notation to do so.
Date: Fri, 28 Apr 2006 14:24:47 GMT
Message-ID: <PAp4g.67584$VV4.1291917_at_ursa-nb00s0.nbnet.nb.ca>
x wrote:
> "dawn" <dawnwolthuis_at_gmail.com> wrote in message > news:1145717081.072600.109970_at_i39g2000cwa.googlegroups.com... >
>>I am referring to any notation anywhere, perhaps in a conceptual or
>>logical data model, for example. While there are terms to distinguish
>>between a base table and a materialized view, for example, I have not
>>found the right terms to distingish a derived materialized attribute
>>from on that is not derived from values in the database. I would like
>>to write about such attributes and am not finding terminology or
>>notation to do so.
> > I think you talk about using expressions like values. > A cross of functional calculus and predicate calculus or predicate calculus > with equality.
Actually, the word the ignorant is looking for is "snapshot". A snapshot is a stored, derived relation. If the fucking kook ever opened a book, she would know that. Received on Fri Apr 28 2006 - 16:24:47 CEST