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 A composite attribute does not get mapped into a relation. 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? Fourth normal form Third normal form First normal form Second normal form Fourth normal form Third normal form First normal form Second normal form ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design A relation has which of the following properties? Each row is not unique. Each relation has a unique name. The order of the columns is significant. Attributes can have the same name within a given table. Each row is not unique. Each relation has a unique name. The order of the columns is significant. Attributes can have the same name within a given table. 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 may be equal to a value in a foreign key. no primary key attribute may be null. no primary key can be composite. no primary key may be unique. no primary key may be equal to a value in a foreign key. no primary key attribute may be null. ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design When mapping a binary many-to-many relationship into a relation which of the following is true? Two relations are created. Three relations are created. Four relations are created. One relation is created. Two relations are created. Three relations are created. Four relations are created. One relation is created. ANSWER DOWNLOAD EXAMIANS APP
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