Introduction to Database System The only reason for the existence of relations is to store instances of functional dependencies. False True False True 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. child parent subtype instance child parent subtype instance ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Helping people keep track of things is the purpose of a(n) ________ . database table relationship instance database table relationship instance ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Prior to 1970, all data was stored in separate files, which were mostly stored on reels of magnetic tape. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Keys made up of two or more attributes are called composite keys. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is NOT a basic element of all versions of the E-R model? Primary keys Relationships Entities Attributes Primary keys Relationships Entities Attributes ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS