16.
Which constraint requires that the binary relationship indicate all combinations that must appear in the ternary relationship?

19.
If a relationship has a cascade updates constraint, then if ________ in the parent table is changed, then the same change will automatically be made to any corresponding foreign key value.

20.
Which of the following column properties would be used to specify that cells in a column must contain a monetary value that is less than another monetary value in the same row?