Null value on form problem <beginner> please help!

M

Mark Hanley

I have found similar problems to mine on this and other newsgroups but
I still haven't been able to solve my problem...

I have two tables 'Pupil' and 'SEN' which are related on a field
called 'UPN' (unique pupil number).

I have a form which is bound to a query that is drawn from both of
these tables and contains Pupil.UPN but not SEN.UPN aswell.

When I update the form I get the error 'The field SEN.UPN cannot
contain a Null value...'

Can anybody give me a hint as to what I need to do to put this right?
I'm tearing my hair out here!

Thanks.
Mark Hanley
 
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