Logical Database Design When mapping a regular entity into a relation which of the following is true? Four relations are created. One relation is created. Two relations are created. Three relations are created. Four relations are created. One relation is created. Two relations are created. Three relations are created. ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design Relations are: four-dimensional tables. two-dimensional tables. three-dimensional tables. five-dimensional tables. four-dimensional tables. two-dimensional tables. three-dimensional tables. five-dimensional tables. 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 A foreign key is which of the following? An attribute that serves as the primary key of another relation An attribute that serves no purpose The same thing as a primary key Any attribute An attribute that serves as the primary key of another relation An attribute that serves no purpose The same thing as a primary key Any attribute ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design A candidate key must uniquely identify each row. True False True False ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design Normalization is a formal process for deciding which attributes should be grouped together in a relation. False True False True ANSWER DOWNLOAD EXAMIANS APP
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