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 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 Packaged data models are meant to be exactly right straight out of the box. True False True False ANSWER DOWNLOAD EXAMIANS APP
ER Model and Business Rules An action assertion must include which of the following? Action Corresponding object Anchor object All of these Action Corresponding object Anchor object All of these ANSWER DOWNLOAD EXAMIANS APP
ER Model and Business Rules Which one of the following symbols is not used in an ERD? Oval Diamond Rectangle Circle Oval Diamond Rectangle Circle ANSWER DOWNLOAD EXAMIANS APP
ER Model and Business Rules A rectangle represents which of the following in an EER? Attribute Optional One Relationship Entity Attribute Optional One Relationship Entity ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS