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Re: Wonder PK id in the EOModel
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Re: Wonder PK id in the EOModel


  • Subject: Re: Wonder PK id in the EOModel
  • From: David LeBer <email@hidden>
  • Date: Thu, 20 Mar 2008 17:53:33 -0400


On 20-Mar-08, at 5:35 PM, Gustavo Pizano wrote:

Well I started to create the EOModel and the questions began to arise.

I c that Wonder gives me an id as Pk, but in the model I have te follwoing, something similar to what David showed in the screencast

(Using the folloing names just to follow the project statement)
Table : Person
Atributes: document
		  phone
		  address

so if there is and id as PK, shouldnt I put the document as PK as well? to avoid data repetitions?

I'm not sure I understand you Gus.

If you have:

	Entity: Person			Table: Person
		id (marked as pk)	-->		id (defined as primary key)

Then id should uniquely identify a Person in the database. No need to make a compound primary key.

Is  that what you are asking?

;david

--
David LeBer
Codeferous Software
'co-def-er-ous' adj. Literally 'code-bearing'
site:   http://codeferous.com
blog: http://davidleber.net
profile: http://www.linkedin.com/in/davidleber
--
Toronto Area Cocoa / WebObjects developers group:
http://tacow.org


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