Logical Database Design Normalization is a formal process for deciding which attributes should be grouped together in a relation. True False True False 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
Logical Database Design If no multivalued attributes exist in a relation, then the relation is in what normal form? Third normal form Second normal form Fourth normal form First normal form Third normal form Second normal form Fourth normal form First normal form ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design A transitive dependency is which of the following? A functional dependency between two or more nonkey attributes. A relation that is in first normal form. A relation that is in second normal form. A functional dependency between two or more key attributes. A functional dependency between two or more nonkey attributes. A relation that is in first normal form. A relation that is in second normal form. A functional dependency between two or more key attributes. ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design The entity integrity rule states that: no primary key may be unique. no primary key can be composite. no primary key may be equal to a value in a foreign key. no primary key attribute may be null. no primary key may be unique. no primary key can be composite. 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 A relation has which of the following properties? Attributes can have the same name within a given table. The order of the columns is significant. Each row is not unique. Each relation has a unique name. Attributes can have the same name within a given table. The order of the columns is significant. Each row is not unique. Each relation has a unique name. ANSWER DOWNLOAD EXAMIANS APP
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