Which of the following best describes a composite key?
Posted: Sat Jul 23, 2022 7:29 pm
Which of the following best describes a composite key?
A. A composite key is a primary key that consists of the first two attributes of a relation.
B. A composite key is a primary or foreign key defined by its parent keys.
C. A composite key is a foreign key that consists of the same attributes as the primary key from a related table.
D. A composite key is a primary or foreign key that consists of two or more attributes of a relation.
A. A composite key is a primary key that consists of the first two attributes of a relation.
B. A composite key is a primary or foreign key defined by its parent keys.
C. A composite key is a foreign key that consists of the same attributes as the primary key from a related table.
D. A composite key is a primary or foreign key that consists of two or more attributes of a relation.