Re: Constraints and Functional Dependencies
From: Bob Badour <bbadour_at_pei.sympatico.ca>
Date: Wed, 28 Feb 2007 14:16:28 GMT
Message-ID: <09gFh.2391$PV3.33178_at_ursa-nb00s0.nbnet.nb.ca>
>
> Convenience, tidyness, safety---there is no difference in power, though.
Date: Wed, 28 Feb 2007 14:16:28 GMT
Message-ID: <09gFh.2391$PV3.33178_at_ursa-nb00s0.nbnet.nb.ca>
Jon Heggland wrote:
>>I'm also not 100% convinced about the utility of possreps. What >>exactly do they get me that conversion functions don't, with fewer >>additional concepts ?
>
> Convenience, tidyness, safety---there is no difference in power, though.
You left off physical and logical independence. Data independence offers a big increase in power.
[snip] Received on Wed Feb 28 2007 - 15:16:28 CET