Logical Database Design A primary key is which of the following? A derived attribute An attribute that uniquely identifies each row Any attribute An attribute that uniquely identifies each column A derived attribute An attribute that uniquely identifies each row Any attribute An attribute that uniquely identifies each column ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design If no multivalued attributes exist in a relation, then the relation is in what normal form? Third normal form Second normal form Fourth normal form First normal form Third normal form Second normal form Fourth normal form First normal form ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design Relations are: three-dimensional tables. two-dimensional tables. four-dimensional tables. five-dimensional tables. three-dimensional tables. two-dimensional tables. four-dimensional tables. five-dimensional tables. ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design A null value is assigned when no other value applies. False True False True ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design An enterprise key is a primary key whose value is unique for a given relation. False True False True ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design A candidate key must uniquely identify each row. False True False True ANSWER DOWNLOAD EXAMIANS APP
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