> Simon Slavin writes:
> On 9 Oct 2011, at 3:57am, 张一帆 wrote:
>> i have some data like "a and b or c ...",there will be a word 'and'
>> or 'or' which means the Logical relations between each item.
> If you have "a and b or c" does that mean
> (a and b) or cOR
> a and (b or c)
张一帆 wrote:
> i have some data like "a and b or c ...",there will be a word 'and' or
> 'or' which means the Logical relations between each item.So how to design a
> table to store the data in best way?
Best way to achieve which goals? What operations do you need to perform on said
data?
--
Igor
> > i have some data like "a and b or c ...",there will be a word 'and' or
> > 'or' which means the Logical relations between each item.
> If you have "a and b or c" does that mean
> (a and b) or c OR
> a and (b or c) ?
> How does your software know ?
> Simon.
just a and b or c...,like this.t
On 9 Oct 2011, at 3:57am, 张一帆 wrote:
> i have some data like "a and b or c ...",there will be a word 'and' or
> 'or' which means the Logical relations between each item.
If you have "a and b or c" does that mean
(a and b) or cOR
a and (b or c)?
How does your software know ?
Simon.
___
i have some data like "a and b or c ...",there will be a word 'and' or
'or' which means the Logical relations between each item.So how to design a
table to store the data in best way?
___
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