Re: Multiplicity, Change and MV

From: Bob Badour <bbadour_at_pei.sympatico.ca>
Date: Thu, 13 Apr 2006 20:37:01 GMT
Message-ID: <NDy%f.59458$VV4.1097541@ursa-nb00s0.nbnet.nb.ca>

B Faux wrote:

> "x" <x_at_not-exists.org> wrote in message news:e1gfct$7l6$1_at_emma.aioe.org...
> 

>>"JOG" <jog_at_cs.nott.ac.uk> wrote in message
>>news:1144686256.966117.179590_at_e56g2000cwe.googlegroups.com...
>>
>>
>>>Change bothers me. Especially in database schema, and specifically when
>>>we want to accomodate change in the cardinalities of the relationships
>>>we are modelling.
>>
>>What schema ?

<snip>

> Ok, I'm gonna take a stab at this from a 'classic MV' perspecitve, ala Pick.

Why would anyone bother with that POS. We established three or four years ago that PICK is dangerously unstable. Simple changes in the schema alter the meaning of existing queries with nothing to indicate or warn about the change.

Only a complete idiot would use that mess. Received on Thu Apr 13 2006 - 15:37:01 CDT