Logical Database Design A candidate key must uniquely identify each row. True False True False ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design A relation has which of the following properties? Attributes can have the same name within a given table. The order of the columns is significant. Each row is not unique. Each relation has a unique name. Attributes can have the same name within a given table. The order of the columns is significant. Each row is not unique. Each relation has a unique name. ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design When mapping a regular entity into a relation which of the following is true? Two relations are created. Three relations are created. Four relations are created. One relation is created. Two relations are created. Three relations are created. Four relations are created. One relation is created. 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 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 and no partial dependencies exist in a relation, then the relation is in what normal form? Third normal form Fourth normal form First normal form Second normal form Third normal form Fourth normal form First normal form Second normal form ANSWER DOWNLOAD EXAMIANS APP
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