Logical Database Design A primary key may be null. False True False True ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design When mapping a binary many-to-many relationship into a relation which of the following is true? Four relations are created. Two relations are created. Three relations are created. One relation is created. Four relations are created. Two relations are created. Three relations are created. One relation is created. 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 If no multivalued attributes exist in a relation, then the relation is in what normal form? Second normal form Third normal form Fourth normal form First normal form Second normal form Third normal form Fourth 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. True False True False ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design Well-structured relations encourage anomalies of data. True False True False ANSWER DOWNLOAD EXAMIANS APP
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