Re: Conceptual, Logical, and Physical views of data
Date: Sun, 11 Sep 2005 18:15:47 GMT
Message-ID: <nv_Ue.10322$9i4.8551_at_newsread2.news.atl.earthlink.net>
"dawn" <dawnwolthuis_at_gmail.com> wrote in message
news:1126389280.329268.169700_at_z14g2000cwz.googlegroups.com...
> I know and I apologize for not yet understanding. This pointer issue
Dawn,
I have learned, over time, to be cautious when you say there's something you
"don't understand."
When I first "met" you in this news group, you were talking about something
important that you didn't understand, from reading and rereading Codd's 1970
> seems one of the big motivators for relational theory, so I want to
> "get it". I understand why this was problematic when related to memory
> locations, but I don't understand the big downside of using logical
> pointers, reference values, foreign keys -- what's the difference?
In the subsequent exchanges between you and me, you gave me to understand that you knew everything that I knew about relational theory and practice, and then some. You had simply reached the opposite from mine as to the merits of the relational data model.
I do not feel the need to repeat that exercise.
But I have little, if anything, to teach to you. I need not teach you anything that you already know to be true. I cannot teach you anything that you already know to be false. What's left? Received on Sun Sep 11 2005 - 20:15:47 CEST