Logical Database Design Well-structured relations encourage anomalies of data. True False True False ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design A composite attribute does not get mapped into a relation. False True False True ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design When mapping a many-to-many unary relationship into a relation which of the following is true? 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. Two relations are created. ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design A primary key is which of the following? 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 An attribute that uniquely identifies each row 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 A null value is assigned when no other value applies. False True False True ANSWER DOWNLOAD EXAMIANS APP
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