Logical Database Design A primary key may be null. True False True False ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design A foreign key may be null and still adhere to the referential integrity constraint. True False True False 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 If no multivalued attributes exist and no partial dependencies exist in a relation, then the relation is in what normal form? Second normal form First normal form Third normal form Fourth normal form Second normal form First normal form Third normal form Fourth normal form ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design A composite attribute does not get mapped into a relation. False True False True ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design A primary key is which of the following? Any attribute A derived attribute An attribute that uniquely identifies each column An attribute that uniquely identifies each row Any attribute A derived attribute An attribute that uniquely identifies each column An attribute that uniquely identifies each row ANSWER DOWNLOAD EXAMIANS APP
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