Logical Database Design The primary key of the new relation in a many-to-many relationship is a composite key comprised of the primary keys of each of the binary entities. False True False True ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design A foreign key may be null and still adhere to the referential integrity constraint. False True False True ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design A candidate key must uniquely identify each row. True False True False ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design The entity integrity rule states that: no primary key can be composite. no primary key may be equal to a value in a foreign key. no primary key may be unique. no primary key attribute may be null. no primary key can be composite. no primary key may be equal to a value in a foreign key. no primary key may be unique. no primary key attribute may be null. ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design Normalization is a formal process for deciding which attributes should be grouped together in a relation. True False True False ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design A foreign key is which of the following? Any attribute An attribute that serves no purpose The same thing as a primary key An attribute that serves as the primary key of another relation Any attribute An attribute that serves no purpose The same thing as a primary key An attribute that serves as the primary key of another relation ANSWER DOWNLOAD EXAMIANS APP