Re: Modeling question...
From: Bob Badour <bbadour_at_pei.sympatico.ca>
Date: Fri, 14 Nov 2008 18:24:54 -0400
Message-ID: <491dfabb$0$5495$9a566e8b_at_news.aliant.net>
>
> That's the way I think Fabian Pascal saw it too. Regardless of whether
> one thinks the shortest logical path is the only logical path, it has
> annoyed me no end that the (few) dbms's I've used didn't allow me to
> insert my own logic in between their storage level and the user view.
Date: Fri, 14 Nov 2008 18:24:54 -0400
Message-ID: <491dfabb$0$5495$9a566e8b_at_news.aliant.net>
> Bob Badour wrote:
> ...
>
>> You were talking about physical performance. Thus, the key concept is >> not logical independence via views but physical independence via >> whatever structures the dbms has available to physically store various >> representations of the data.
>
> That's the way I think Fabian Pascal saw it too. Regardless of whether
> one thinks the shortest logical path is the only logical path, it has
> annoyed me no end that the (few) dbms's I've used didn't allow me to
> insert my own logic in between their storage level and the user view.
Well, they do and they don't. Many dbms products allow for various indexing and clustering schemes. Far more options are needed and the scope of the physical dbms should be much broader than it is now. Perhaps with the advent of multi-core chips and cloud computing dbmses will start expanding that scope. Received on Fri Nov 14 2008 - 23:24:54 CET