Logical Database Design If no multivalued attributes exist in a relation, then the relation is in what normal form? Second normal form First normal form Fourth normal form Third normal form Second normal form First normal form Fourth normal form Third normal form 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? First normal form Third normal form Second normal form Fourth normal form First normal form Third normal form Second normal form Fourth normal form ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design When mapping a regular entity into a relation which of the following is true? One relation is created. Three relations are created. Two relations are created. Four relations are created. One relation is created. Three relations are created. Two relations are created. Four relations are created. ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design A primary key is which of the following? An attribute that uniquely identifies each row A derived attribute Any attribute An attribute that uniquely identifies each column An attribute that uniquely identifies each row A derived attribute Any attribute An attribute that uniquely identifies each column 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 When mapping a supertype/subtype relationship which of the following is true? The subtype primary key is assigned to each supertype. There is no primary key/foreign key relationship between a supertype/subtype. The supertype primary key is assigned to each subtype. There is no link between the supertype/subtype entities. The subtype primary key is assigned to each supertype. There is no primary key/foreign key relationship between a supertype/subtype. The supertype primary key is assigned to each subtype. There is no link between the supertype/subtype entities. ANSWER DOWNLOAD EXAMIANS APP
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