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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