If using a form for data entry, and you should be, in the after update
event
of the form, you can add a bit of code which does:
Private Sub Form_AfterUpdate()
If Field1 + Field2 = 0 Then Field3 =1
End Sub
Well, the reason I'm not using a form is if I put all the 3rd fields
on there, my query and form have over 255 fields. That's why I
eliminated them. But I was hoping I could do something to get the
table to store a 1 if I don't choose anything on the form.
Although a table or query can take up to 255 fields, I can't remember the
last time I designed one with more than 30. Most tables have 10 or less
fields in a well-designed database.
Never-the-less, a form can house 754 controls over its lifetime which means
if you use all text and combo boxes, and never deleted any, you could, with
labels build 374 controls, and without labels, the full 754. That's a lot
more than will fit in any query or table.