Logical Database Design A foreign key is which of the following? An attribute that serves no purpose Any attribute An attribute that serves as the primary key of another relation The same thing as a primary key An attribute that serves no purpose Any attribute An attribute that serves as the primary key of another relation The same thing as a primary key ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design A transitive dependency is which of the following? A functional dependency between two or more key attributes. A relation that is in second normal form. A functional dependency between two or more nonkey attributes. A relation that is in first normal form. A functional dependency between two or more key attributes. A relation that is in second normal form. A functional dependency between two or more nonkey attributes. A relation that is in first normal form. ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design When mapping a multivalued attribute into a relation which of the following is true? Four relations are created. Two relations are created. One relation is created. Three relations are created. Four relations are created. Two relations are created. One relation is created. Three relations are created. ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design If no multivalued attributes exist in a relation, then the relation is in what normal form? Fourth normal form Second normal form Third normal form First normal form Fourth normal form Second normal form Third normal form First normal form ANSWER DOWNLOAD EXAMIANS APP
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 candidate key must uniquely identify each row. True False True False ANSWER DOWNLOAD EXAMIANS APP
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