Re: more on delete from join
From: Bob Badour <bbadour_at_pei.sympatico.ca>
Date: Mon, 31 Aug 2009 12:44:23 -0300
Message-ID: <4a9bebb6$0$23758$9a566e8b_at_news.aliant.net>
>
> This is certainly true in the data management viewpoint, but I
> could also imagine a relational programming that allowed either
> to be unnamed.
>
> This is admittedly a very obscure point.
Date: Mon, 31 Aug 2009 12:44:23 -0300
Message-ID: <4a9bebb6$0$23758$9a566e8b_at_news.aliant.net>
Marshall wrote:
> On Aug 30, 2:44 pm, Bob Badour <bbad..._at_pei.sympatico.ca> wrote:
>
>>No. Both base tables and views are named relation variables. They have >>to be because their values vary over time.
>
> This is certainly true in the data management viewpoint, but I
> could also imagine a relational programming that allowed either
> to be unnamed.
>
> This is admittedly a very obscure point.
The unnamed case is just an equation or an expression as in x+y=1 Received on Mon Aug 31 2009 - 17:44:23 CEST