Which of the following statements about foreign keys is not true?
A. A foreign key can be a combination of attributes
B. A foreign key cannot be NULL
C. Foreign key must match values of the linked primary key
D. Foreign keys support a defined association

Question

Quizplus · Accepted Answer

The Answer of Which of the following statements about foreign keys is not true?
A. A foreign key can be a combination of attributes
B. A foreign key cannot be NULL
C. Foreign key must match values of the linked primary key
D. Foreign keys support a defined association

Which of the Following Statements About Foreign Keys Is Not