Conditionally mandatory field

[MaxS]

Hi there,

I was wondering how I would represent a conditionally mandatory field in a database that I am trying to set up. I have a field of various classes represented, of which one of them is "Other", I have another field which would need to be filled in only in the case that "Other" is selected as a class. How do I represent this in a model?

Thanks for any help,

Max

[Geert Bellekens]

Max,

I would add a constraint to the attribute defining when en how the attribute is mandatory.

Geert