Re: Sixth normal form
From: paul c <toledobythesea_at_oohay.ac>
Date: Wed, 01 Aug 2007 20:19:41 GMT
Message-ID: <xV5si.22613$rX4.14717_at_pd7urf2no>
Date: Wed, 01 Aug 2007 20:19:41 GMT
Message-ID: <xV5si.22613$rX4.14717_at_pd7urf2no>
Brian Selzer wrote:
...
> It's somewhat unrelated, ...
Also, I would like to know if anybody has ever invented a relational algebra or calculus that supports "update". AFAIK, update is either a system colloquial, environmental or a language, say SQL, term. Yeah, I know people say "update" a tuple et cetera and I think that's okay if it is agreed and understood just what exactly the system or dbms they have in mind is going to do about the "update". In the recent threads, I don't and I'm pretty sure we don't either.
p Received on Wed Aug 01 2007 - 22:19:41 CEST