Alexandr Savinov schrieb:
> Volker Hetzer schrieb:
>> Hi!
>> Just in general, are circular relationships something that
>> can always be avoided?
>> Or, given a model with a circular relationship, possibly
>> spanning several tables, is there a way to get rid of them?
>
> One approach consists in using the concept-oriented data model as follows.
>
> 1. Order your tables so that if table A references records from table B,
> then A is positioned under B. For example, if an order has a field with
> its customer then you position them as follows:
>
> Customre
> |
> Order
So, what if A references B, B references C and C references A?
Lots of Greetings!
Volker
Received on Thu Mar 02 2006 - 08:25:00 CST
