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Access Table Design
Required property of Primary Key fields
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[QUOTE="Jamie Collins, post: 2582125"] The difference is between the SQL update (INSERT/UPDATE) failing a NOT NULL constraint and failing a PRIMARY KEY constraint. In either case the net result is the same i.e. the SQL update fails. I say, make the columns NOT NULL (Required = Yes). It makes no difference. IMO nullable columns should be avoided, especailly in FKs. Jamie. -- [/QUOTE]
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