Quiz 1

9. Which mathematical operator must be used in order to display information about students who are majoring in both Computer Science and Electrical Engineering? ● Intersection ● Cartesian Product ● Union ● Difference 10. Which mathematical operation must be completed before the ϴ-Join operation? ● Union ● Intersection ● Cartesian product ● Multiplication 11. For which of the following functions require database management software because typical spreadsheet software cannot implement it? ● Store data ● Search data ● Create multiple user types ● Update data 12. What connects two entities in a database? ● Relationship ● Relation ● Table ● Record 13. What is the name of the operation used for joining two relations? ● α-Join ● β-Join ● ⋈-Join ● ϴ-Join 14. Which operator must be used to display information about students majoring in Mathematics or Physics? ● Intersection ● Difference ● Cartesian Product ● Union 15. Which of the following two operators must be used one after another? ● Cartesian Product, Multiplication ● Union, ϴ-Join ● Multiplication, ϴ-Join ● Cartesian Product, ϴ-Join 16. What must be listed after the SELECT command in a SQL query? ● Records ● Tables