On Sat, 12 Dec 2009 11:34:01 -0800, timmone
Yes, but you shouldn't. Because that would violate an important
relational database design principle that says "no calculated fields
in the database". Rather you would calculate the value on the fly in a
query:
select DateDiff("d", myStartDate, myEndDate) as DaysBetween
from myTable
-Tom.
Microsoft Access MVP