On 6/19/07, Ed W <[EMAIL PROTECTED]> wrote:
>
> Hi
>
>
> I was with you up until you said "linked list" which isn't really
> meaningful in this context. More likely you would have a list of
> records which would have a valid_to attribute describing when they
> were no longer used.
>
>
> Well, I
On 6/19/07, David Bandel <[EMAIL PROTECTED]> wrote:
> On 6/19/07, Chris Travers <[EMAIL PROTECTED]> wrote:
> > On 6/19/07, Ed W <[EMAIL PROTECTED]> wrote:
> >
> > >
> > > One other issue which occured to me which is significant to think about
> > > right now is as follows:
> > >
> > > - Invoices re
Ed W wrote:
> Hi
>
>> Ok, I look at normalization as a mathematical method of ensuring that
>> the data can represent anything it needs to.
> Address should probably be nomalised out of the entity in order to allow
> having multiple addresses per entity (eg two delivery addresses)
Addresses (lo
Ed,
> - Customer A makes initial contact and wants something in a hurry. EU
> shipping address, but no vat details so we charge sales tax (VAT) and
> ship the item
> - Customer A comes back next week and we have more time to sort out the
> paperwork and they give me their VAT details and this tim
Hi
I was with you up until you said "linked list" which isn't really
meaningful in this context. More likely you would have a list of
records which would have a valid_to attribute describing when they
were no longer used.
Well, I was thinking of linked list in the sense that you have an
C
On 6/19/07, Chris Travers <[EMAIL PROTECTED]> wrote:
> On 6/19/07, Ed W <[EMAIL PROTECTED]> wrote:
>
> >
> > One other issue which occured to me which is significant to think about
> > right now is as follows:
> >
> > - Invoices really should have delivery and billing addresses locked down
>
> Only
On 6/19/07, Ed W <[EMAIL PROTECTED]> wrote:
>
> One other issue which occured to me which is significant to think about
> right now is as follows:
>
> - Invoices really should have delivery and billing addresses locked down
Only caveat is "billing address" may be somewhat ambiguous in this case :
On 6/19/07, Ed W <[EMAIL PROTECTED]> wrote:
> Hi
>
> > Ok, I look at normalization as a mathematical method of ensuring that
> > the data can represent anything it needs to.
> >
> > Interface and physical model are not tightly coupled.
> >
>
> Agreed.
>
> One other issue which occured to me which i
Hi
> Ok, I look at normalization as a mathematical method of ensuring that
> the data can represent anything it needs to.
>
> Interface and physical model are not tightly coupled.
>
Agreed.
One other issue which occured to me which is significant to think about
right now is as follows:
- In
