ER Model and Business Rules An ERD that has had the entities clustered will display more entities. True False True False ANSWER DOWNLOAD EXAMIANS APP
ER Model and Business Rules A supertype/subtype hierarchy is which of the following? Each supertype has only one subtype. Each subtype has only one attribute. Each subtype has only one supertype. Each supertype has only one attribute. Each supertype has only one subtype. Each subtype has only one attribute. Each subtype has only one supertype. Each supertype has only one attribute. 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. True False True False ANSWER DOWNLOAD EXAMIANS APP
ER Model and Business Rules Overlapping and disjoint subtypes have different approaches on how the subtype discriminator is applied. True False True False ANSWER DOWNLOAD EXAMIANS APP
ER Model and Business Rules A subtype discriminator of the supertype is an attribute whose values determine the target subtype(s). False True False True ANSWER DOWNLOAD EXAMIANS APP
ER Model and Business Rules When an entity instance must be a member of only one subtype, it is which of the following? Overlap with partial specialization Disjoint with partial specialization Disjoint with total specialization Overlap with total specialization Overlap with partial specialization Disjoint with partial specialization Disjoint with total specialization Overlap with total specialization ANSWER DOWNLOAD EXAMIANS APP
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