Doubt about data modeling

Dicas sobre o Oracle Designer. Dicas sobre modelagem, ER, etc.
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Lorran Pimenta
Rank: Estagiário Júnior
Rank: Estagiário Júnior
Posts: 1
Joined: Tue, 22 Jan 2013 5:24 pm

Hello everyone,

I am a beginner in both the forum and in this area that I am studying lately, so if I am posting wrong I apologize.



A seller wants to register all his clients who have a registered company. Below is the entities and their needs.

1st company requires responsible, because if something goes wrong the seller will contact the owner or manager.
2º There is a buyer within the company to supply your needs. But this buyer is related to some product.

Cardinities: Company can at least have a buyer and a maximum of several buyers,
Buyer may exist at least in a company, at most in one also
Buyer can purchase at least one type of article "products", and at most of several articles "products"

Note: I do not want to go into detail as the date of purchase for now, I would like to know how Continue at this time.

Thanks to all for patience,
Lorran pepper
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Modelagem empresa
Modelagem empresa
DanielNN
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Posts: 641
Joined: Mon, 03 Sep 2007 3:26 pm
Location: Fortaleza - CE
att,

Daniel N.N.

I was a bit confusing, what is your current question?
Do you want to understand how it would work only the relationship between company and company responsible ???
Where the buyer enters the story ???
When you say "company" refers to "suppliers" ????
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