Active Record/ORM vs Normal Forms?

Posted by Arsenal on Stack Overflow See other posts from Stack Overflow or by Arsenal
Published on 2010-05-10T08:07:39Z Indexed on 2010/05/10 8:14 UTC
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sql

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normalization

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database-design

Hello,

I've been playing around with Active Record a bit, and I have noticed that A.C./ORM always uses the following database model when creating a one-to-one relationship

Person

id | country_id | name | ...

Country

id | tld | name | ...

No I wondered, isn't this a violiation of the third Normal Form? This clearly states "Every non-prime attribute is non-transitively dependent on every key of the table". Well this country_id isn't dependent of personid is it?

So is this wrong or am I just not getting the point?

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