Instead of "allow NULL" call it "NOT NULL" in the table design general view Instead of "allow NULL" call it "NOT NULL" in the table design general view (in line with SQL and most other tools). 3 votes Vote Vote Vote Vote We're glad you're herePlease sign in to leave feedback Signed in as (Sign out) Close Close 1 vote 2 votes 3 votes Remove votes You have left! (?) (thinking…) Steffen shared this idea · Nov 5, 2012 · Report…Report… · Delete… · Admin → completed · Nov 16, 2016 Show previous admin responses (1) under review · AdminDevart (_, Devart) responded · Nov 30, 2015 Tweet Add a comment… We're glad you're herePlease sign in to leave feedback Signed in as (Sign out) Close Close Post comment Submitting... An error occurred while saving the comment