Re: Does Codd's view of a relational database differ from that of Date & Darwin? [M.Gittens]
Date: Sun, 12 Jun 2005 08:29:57 GMT
Message-ID: <9oSqe.3698$pa3.2699_at_newsread2.news.atl.earthlink.net>
"Marshall Spight" <marshall.spight_at_gmail.com> wrote in message
news:1118512534.520424.51700_at_g47g2000cwa.googlegroups.com...
> > The "type" of such a variable is assignable just as much as the value
is.
>
> I think the clearer way to say it is that in these languages, variables
> do not have type.
Perhaps the clearest way to say it is that values do have type.
Back in 1970, I was a member of a team that implemented a language called MDL at MIT. MDL was like lisp, only with arrays and types. It had some other nifty features, some of which were eventually incorporated into common lisp. It's fair to say that MDL values were typed.
You can look up MDL in the Wikipedia, although you may have to look under its affectionate nickname, MUDDLE. Received on Sun Jun 12 2005 - 10:29:57 CEST