Logical Database Design A candidate key must uniquely identify each row. 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? 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 When mapping a regular entity into a relation which of the following is true? Two relations are created. Four relations are created. One relation is created. Three relations are created. Two relations are created. Four relations are created. One relation is created. Three relations are created. 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 many-to-many unary relationship into a relation which of the following is true? 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. Four relations are created. ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design A relation has which of the following properties? The order of the columns is significant. Attributes can have the same name within a given table. Each relation has a unique name. Each row is not unique. The order of the columns is significant. Attributes can have the same name within a given table. Each relation has a unique name. Each row is not unique. ANSWER DOWNLOAD EXAMIANS APP
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