Introduction to Database System In a relation, the rows are sometimes called "fields". True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A primary key is a composite key that was selected to be the main identifier for the relation. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following indicates the maximum number of entities that can be involved in a relationship? Greater Entity Count (GEC) Maximum cardinality Minimum cardinality ERD Greater Entity Count (GEC) Maximum cardinality Minimum cardinality ERD ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which type of entity cannot exist in the database unless another type of entity also exists in the database, but does not require that the identifier of that other entity be included as part of its own identifier? ID- independent entity Strong entity ID-dependent entity Weak entity ID- independent entity Strong entity ID-dependent entity Weak entity ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In a one-to-many relationship, the entity that is on the one side of the relationship is called a(n) ________ entity. parent subtype instance child parent subtype instance child ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS