Re: Objects and Relations
From: Bob Badour <bbadour_at_pei.sympatico.ca>
Date: Mon, 26 Feb 2007 14:54:30 GMT
Message-ID: <GwCEh.1519$PV3.21870_at_ursa-nb00s0.nbnet.nb.ca>
>
> N-ary attribute instantiation does not make any sense.
>
> What do you mean with array object?
>
>
>
> Arrays are indeed multidimensional structures like relations. The
> problem is that most structured programming languages lack array
> algebra operators.
Date: Mon, 26 Feb 2007 14:54:30 GMT
Message-ID: <GwCEh.1519$PV3.21870_at_ursa-nb00s0.nbnet.nb.ca>
Alfredo Novoa wrote:
> On 26 feb, 13:24, "Cimode" <cim..._at_hotmail.com> wrote:
>
>>in RM, n-ary attribute instantiation is a synonym for tuple set.
>
> N-ary attribute instantiation does not make any sense.
Google: proposition instantiate
>>Thanks for clarifying that. What about instantiation of >>multidimensional array objects?
>
> What do you mean with array object?
>
>
>> Could n' we consider them as an >>instantiation of n-ary attributes (or predicates if you wish)?
>
> Arrays are indeed multidimensional structures like relations. The
> problem is that most structured programming languages lack array
> algebra operators.
Hear! Hear! Received on Mon Feb 26 2007 - 15:54:30 CET