Re: equivalence of functional dependencies
From: Mark Johnson <102334.12_at_compuserve.com>
Date: Wed, 07 Jan 2004 04:34:34 -0800
Message-ID: <96vnvv0sauhtfp68itog5rp3njcgb0adcn_at_4ax.com>
Date: Wed, 07 Jan 2004 04:34:34 -0800
Message-ID: <96vnvv0sauhtfp68itog5rp3njcgb0adcn_at_4ax.com>
Jonathan Leffler <jleffler_at_earthlink.net> wrote:
>shannon wrote:
>
>> I have tried an example from the elmasri book, perhaps somebody can pass
>> judgement on my logic,
>>
>> two sets of functional dependencies F= {A > C, AC > D, E > AD, E > H}
>> and G = {A > CD, E > AH}. Check whether or not they are equivalent.
Might there just be a good example of this, online? Received on Wed Jan 07 2004 - 13:34:34 CET