Introduction to Database System Helping people keep track of things is the purpose of a(n) ________ . relationship table database instance relationship table database instance 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 true of a network structure? It will be the dominant data base of the future It is a physical representation of the data It allows a many-to-many relationship It is conceptually simple It will be the dominant data base of the future It is a physical representation of the data It allows a many-to-many relationship It is conceptually simple ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A key is a group of one or more attributes that uniquely identifies a row. False True False True 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. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System An identifier determines the type of relationship that an entity has. False True False True ANSWER DOWNLOAD EXAMIANS APP