Re: uniqueness constraint on an a foreign key
Re: uniqueness constraint on an a foreign key
- Subject: Re: uniqueness constraint on an a foreign key
- From: Chuck Hill <email@hidden>
- Date: Fri, 19 Sep 2008 10:26:00 -0700
If the relationship is mandatory, I'd use the PK.
On Sep 19, 2008, at 10:00 AM, Florijan Stamenkovic wrote:
Hi all,
I have a relationship A <->> B. B carries the FK for A, not allowed
to be null.
I'd like to enforce that a single A can relate to only one B so I'm
thinking of putting a uniqueness constraint on the FK. As far as I
can see that will give me what I want without causing any trouble.
Can anyone think of a reason against doing this, or is there a
better practice to address this?
Thanks,
F
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Chuck Hill Senior Consultant / VP Development
Practical WebObjects - for developers who want to increase their
overall knowledge of WebObjects or who are trying to solve specific
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