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Home -> Community -> Usenet -> comp.databases.theory -> Re: A simple notation, again
Cimode wrote:
> On 19 juil, 03:48, paul c <toledobythe..._at_oohay.ac> wrote:
>
..
>>
>>R1:
>>A
>>1
>>2
>>
>>and
>>
>>R2:
>>B
>>2
>>1
> > > In this case R1 = R2 if and only if A = B. That condition *is* what > bothers me(I agree row order is a minor point). ...\
Sorry, I should have written:
R1:
A
1
2
R2:
A
1
2
p Received on Thu Jul 19 2007 - 16:20:54 CDT
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