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 A supertype/subtype hierarchy is which of the following? Each supertype has only one subtype. Each subtype has only one supertype. Each supertype has only one attribute. Each subtype has only one attribute. Each supertype has only one subtype. Each subtype has only one supertype. Each supertype has only one attribute. Each subtype has only one attribute. ANSWER DOWNLOAD EXAMIANS APP
ER Model and Business Rules If an entity adheres to the disjoint rule, then an entity instance can be a member of more than one entity for a given supertype. 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. False True False True ANSWER DOWNLOAD EXAMIANS APP
ER Model and Business Rules A supertype can only have only one subtype. False True False True ANSWER DOWNLOAD EXAMIANS APP
ER Model and Business Rules Which one of the following symbols is not used in an ERD? Circle Rectangle Oval Diamond Circle Rectangle Oval Diamond ANSWER DOWNLOAD EXAMIANS APP
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