Re: THe OverRelational Manifesto (ORM)
From: Bob Badour <bbadour_at_pei.sympatico.ca>
Date: Wed, 19 Apr 2006 19:47:30 GMT
Message-ID: <mtw1g.62502$VV4.1168375_at_ursa-nb00s0.nbnet.nb.ca>
>>But of course there are more relationships between OO and the
>>Relational Model.
>>
>>For instance:
>>
>>operator = method
>>pointer = OID
>>scalar value = object
>>scalar variable = object
>>scalar value = instance
>>
>>Etc.
Date: Wed, 19 Apr 2006 19:47:30 GMT
Message-ID: <mtw1g.62502$VV4.1168375_at_ursa-nb00s0.nbnet.nb.ca>
JOG wrote:
> Alfredo Novoa wrote:
>
> [snip]
>
>>But of course there are more relationships between OO and the
>>Relational Model.
>>
>>For instance:
>>
>>operator = method
>>pointer = OID
>>scalar value = object
>>scalar variable = object
>>scalar value = instance
>>
>>Etc.
> > [snip] > > While I agree with virtually everything you say Alfred, I never liked > the "pointer=OID comparison.". Pointers are variable, and OID's are far > more analagous to a memory address. Of course, that doesn't diminish > the disadvantages of navigational databases, but the sofware engineer > in me always cringes slightly when I see the comparison.
A pointer variable has a memory address value (or a storage location value). An OID variable has an OID value. I don't see how that makes the comparison any less valid. Received on Wed Apr 19 2006 - 21:47:30 CEST