# Re: Pizza Example

Date: Fri, 16 Apr 2004 23:11:24 +0100

Message-ID: <hPBPoREMoFgAFwuB_at_thewolery.demon.co.uk>

In message <c57407$qn6$1_at_news.netins.net>, Dawn M. Wolthuis
<dwolt_at_tincat-group.com> writes

*>Well, I know several text book answers -- for example, using an RDBMS makes
**>changes to software database applications less expensive and less risky. My
**>experience tells me the opposite.
**>
**>Then there is the text book answer that says that "relational theory" is
**>based on mathematics and logic and a relation is the simplest form of
**>construct that fully addresses data modeling, therefore, it must be right.
**>I have pointed out that a mathematical model is simply a metaphor and that
**>there is nothing mathematical about the statement that the simplest model is
**>the best.
*

And without scientific evidence to show that the maths is *relevant*,
who gives a sh*t if the maths is perfectly correct. If it disagrees with
reality, the fact that it is "correct" is useless.

*>
**>The text book might indicate that using a DBMS provides us with constraint
**>logic that protects the integrity of the database not just from end-user
**>data, but from the mistakes of application software developers, thus helping
**>us have a DBMS that is not specific to a single application. I have
**>personal experience with several instances where this is true, but a lot
**>more where it either didn't matter or where having such constraints
**>specified made software developers "code around" the constraints.
*

Cheers,

Wol

-- Anthony W. Youngman - wol at thewolery dot demon dot co dot uk HEX wondered how much he should tell the Wizards. He felt it would not be a good idea to burden them with too much input. Hex always thought of his reports as Lies-to-People. The Science of Discworld : (c) Terry Pratchett 1999Received on Sat Apr 17 2004 - 00:11:24 CEST