Logical Database Design If no multivalued attributes exist and no partial dependencies exist in a relation, then the relation is in what normal form? Fourth normal form Second normal form Third normal form First normal form Fourth normal form Second normal form Third normal form First normal form ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design When mapping a binary many-to-many relationship into a relation which of the following is true? 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. Two relations are created. ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design The entity integrity rule states that: no primary key may be equal to a value in a foreign key. no primary key can be composite. no primary key attribute may be null. no primary key may be unique. no primary key may be equal to a value in a foreign key. no primary key can be composite. no primary key attribute may be null. no primary key may be unique. ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design The relational model consists of: operations using non-SQL languages. unorganized data. data in the form of tables. data redundancy. operations using non-SQL languages. unorganized data. data in the form of tables. data redundancy. ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design When mapping a regular entity into a relation which of the following is true? 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. Three relations are created. ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design The primary key of the new relation in a many-to-many relationship is a composite key comprised of the primary keys of each of the binary entities. False True False True ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS