| Oracle FAQ | Your Portal to the Oracle Knowledge Grid | |
 |
 | |||
| Oracle FAQ | Your Portal to the Oracle Knowledge Grid | |
|
| |||
Home -> Community -> Usenet -> comp.databases.theory -> Re: database design method
Alfredo Novoa wrote:
>On 25 Oct 2002 16:37:47 +0200, hidders_at_REMOVE.THIS.uia.ua.ac.be (Jan
>Hidders) wrote:
>
>>Dbdebunk is not the gospel. The fact that you can use FOL to describe
>>constraints in the ER model is so plainly obvious to people who know about
>>logic and ER models that no serious researcher would write an article about
>>that.
>
>Do you mean to attach a written list of rules to the ER diagram?
Yes.
>I think It would be more logic to do the opposite.
You mean attach an ER diagram to the list of rules? That would be very strange since the ER diagram defines the universe of discourse for the rules.
 |
 |