[dba-SQLServer] NULLs

But you still have a null, and wasn't the argument against nulls, period?

See, I'm having a real problem with the idea that null isn't valid and 
shouldn't be allowed at all.

Susan H.


> It's Null - but your data validation must ensure that one of the two 
> fields
> is correctly filled in.  I see data validation as not applying to just
> single fields, but also applying to combinations of fields.