Re: Does Codd's view of a relational database differ from that ofDate&Darwin?[M.Gittens]
From: Marshall Spight <marshall.spight_at_gmail.com>
Date: 9 Jun 2005 12:30:16 -0700
Message-ID: <1118345416.962466.307170_at_g47g2000cwa.googlegroups.com>
Date: 9 Jun 2005 12:30:16 -0700
Message-ID: <1118345416.962466.307170_at_g47g2000cwa.googlegroups.com>
> What would you like to achieve with the algebra?
Hmmm. What I get from your post is that I really already know what I need to know. Most any modest set of operations will suffice, and everything else can be written in those terms. (get/set/size/insert/delete/concat is more than complete.)
> Note that the point of
> algebras, including the relational algebra, is usually not their
> expressive power, we have programming languages for that.
> So it is not clear to me what you are looking for.
Marshall Received on Thu Jun 09 2005 - 21:30:16 CEST