Re: views of binary operations

From: paul c <toledobythesea_at_oohay.ac>
Date: Tue, 18 Jul 2006 01:16:16 GMT
Message-ID: <ADWug.206374$IK3.62961@pd7tw1no>

paul c wrote:

> Bob Badour wrote:
> ...

>>
>> Data independence comprises two distinct types of independence.
>> Physical independence allows one to adjust performance characteristics
>> without disturbing a given logical design. Logical independence allows
>> one to adjust the logical design without disturbing existing
>> applications. One achieves the latter form of data independence
>> through application views -- especially updatable views.
>>...

> Thanks, that second paragraph seems to explain the distinction rather > well. ...

Oops, it was the first paragraph that I liked (the one above).

p Received on Mon Jul 17 2006 - 20:16:16 CDT