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. True False True False ANSWER DOWNLOAD EXAMIANS APP
ER Model and Business Rules A rectangle represents which of the following in an EER? Optional One Attribute Entity Relationship Optional One Attribute Entity Relationship 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 A subtype discriminator is which of the following? An attribute of the subtype whose values determine the subtype An attribute of the subtype whose values determine the supertype An attribute of the supertype whose values determine the supertype An attribute of the supertype whose values determine the subtype An attribute of the subtype whose values determine the subtype An attribute of the subtype whose values determine the supertype An attribute of the supertype whose values determine the supertype An attribute of the supertype whose values determine the subtype 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). True False True False ANSWER DOWNLOAD EXAMIANS APP
ER Model and Business Rules An ERD that has had the entities clustered will display more entities. False True False True ANSWER DOWNLOAD EXAMIANS APP
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