ER Model and Business Rules A supertype can only have only one subtype. True False True False 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 Use of a supertype/subtype relationship is necessary when which of the following exists? An instance of a subtype participates in a relationship that is the same as the other subtypes. No attributes apply to any of the instances of an entity type. An instance of a subtype participates in a relationship that is unique to that subtype. Attributes apply to all of the instances of an entity type. An instance of a subtype participates in a relationship that is the same as the other subtypes. No attributes apply to any of the instances of an entity type. An instance of a subtype participates in a relationship that is unique to that subtype. Attributes apply to all of the instances of an entity type. 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? Disjoint with total specialization Disjoint with partial specialization Overlap with partial specialization Overlap with total specialization Disjoint with total specialization Disjoint with partial specialization Overlap with partial specialization Overlap with total specialization 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 Which of the following is not one of the three ways to classify an action assertion? Condition Integrity Control Enabler Authorization Condition Integrity Control Enabler Authorization ANSWER DOWNLOAD EXAMIANS APP
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