Logical Database Design When mapping a regular entity into a relation which of the following is true? Four relations are created. Three relations are created. Two relations are created. One relation is created. Four relations are created. Three relations are created. Two relations are created. One relation is created. ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design The primary key in a relation does not need to be underlined. 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? First normal form Third normal form Second normal form Fourth normal form First normal form Third normal form Second normal form Fourth normal form ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design A candidate key must uniquely identify each row. False True False True ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design The entity integrity rule states that: no primary key can be composite. no primary key may be unique. no primary key attribute may be null. no primary key may be equal to a value in a foreign key. no primary key can be composite. no primary key may be unique. no primary key attribute may be null. no primary key may be equal to a value in a foreign key. ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design The relational model consists of: unorganized data. data in the form of tables. operations using non-SQL languages. data redundancy. unorganized data. data in the form of tables. operations using non-SQL languages. data redundancy. ANSWER DOWNLOAD EXAMIANS APP
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