Logical Database Design If no multivalued attributes exist and no partial dependencies 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 A null value is assigned when no other value applies. False True False True ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design A synonym is two or more attributes that have different names but the same meaning. 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 When mapping a supertype/subtype relationship which of the following is true? The subtype primary key is assigned to each supertype. There is no link between the supertype/subtype entities. The supertype primary key is assigned to each subtype. There is no primary key/foreign key relationship between a supertype/subtype. The subtype primary key is assigned to each supertype. There is no link between the supertype/subtype entities. The supertype primary key is assigned to each subtype. There is no primary key/foreign key relationship between a supertype/subtype. 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. True False True False ANSWER DOWNLOAD EXAMIANS APP
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