What is meant by "Index or primary key cannot contain a Null value

What is meant by "Index or primary key cannot contain a Null value

Post by RXJpa1 » Wed, 23 Aug 2006 05:03:01


I've developed an InfoPath form that is connected to a database. I have
formatted the connection to both submit and receive data from the database.
When I insert a data control to submit data and preview to test submitting
some sample data to the database I get the messege "Index or primary key
cannot contain a Null value." What does this mean?