Logical Database Design When mapping a binary many-to-many relationship into a relation which of the following is true? Two relations are created. One relation is created. Three relations are created. Four relations are created. Two relations are created. One relation is created. Three relations are created. Four relations are created. 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 First normal form Second normal form Fourth normal form Third normal form First normal form Second normal form Fourth normal form ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design A relation has which of the following properties? Each row is not unique. The order of the columns is significant. Attributes can have the same name within a given table. Each relation has a unique name. Each row is not unique. The order of the columns is significant. Attributes can have the same name within a given table. Each relation has a unique name. ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design When mapping a supertype/subtype relationship which of the following is true? The supertype primary key is assigned to each subtype. The subtype primary key is assigned to each supertype. There is no link between the supertype/subtype entities. There is no primary key/foreign key relationship between a supertype/subtype. The supertype primary key is assigned to each subtype. The subtype primary key is assigned to each supertype. There is no link between the supertype/subtype entities. There is no primary key/foreign key relationship between a supertype/subtype. ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design The relational model consists of: unorganized data. data redundancy. data in the form of tables. operations using non-SQL languages. unorganized data. data redundancy. data in the form of tables. operations using non-SQL languages. ANSWER DOWNLOAD EXAMIANS APP
Logical Database Design If no multivalued attributes exist and no partial dependencies exist in a relation, then the relation is in what normal form? Second normal form First normal form Third normal form Fourth normal form Second normal form First normal form Third normal form Fourth normal form ANSWER DOWNLOAD EXAMIANS APP
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