ER Model and Business Rules It is appropriate to use a supertype/subtype relationship when there are attributes that apply to some of the instances of an entity type. False True False True ANSWER DOWNLOAD EXAMIANS APP
ER Model and Business Rules Total specialization is represented by double lines between the supertype and subtype on an EER. True False True False ANSWER DOWNLOAD EXAMIANS APP
ER Model and Business Rules A supertype is an entity type that shares common attributes or relationships distinct from other subgroupings. True False True False ANSWER DOWNLOAD EXAMIANS APP
ER Model and Business Rules Generalization is the process of defining more general entity types from a set of more specialized entity types. False True False True ANSWER DOWNLOAD EXAMIANS APP
ER Model and Business Rules A supertype/subtype hierarchy is which of the following? Each supertype has only one attribute. Each subtype has only one supertype. Each subtype has only one attribute. Each supertype has only one subtype. Each supertype has only one attribute. Each subtype has only one supertype. Each subtype has only one attribute. Each supertype has only one subtype. ANSWER DOWNLOAD EXAMIANS APP
ER Model and Business Rules An entity instance of a subtype represents the same entity instance of a supertype. True False True False ANSWER DOWNLOAD EXAMIANS APP
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