Chapter 3 Multiple Choice Already Passed

46. Another name for a composite entity is a(n) entity. a. bridge b. linked c. directive d. associative {Ans: ANSWER: a. bridge}28. Referential dictates that the foreign key must contain values that match the primary key in the related table, or must contain null. a. integrity b. uniqueness c. model d. attribute {Ans: ANSWER: a. integrity}21. logic, used extensively in mathematics, provides a framework in which an assertion (statement of fact) can be verified as either true or false. a. Predicate b. Database c. Relational d. Index {Ans: ANSWER: a. Predicate}45. relationships can be implemented by creating a new entity in 1:M relationships with the original entities. a. 1:N b. M:1 c. M:N d. 1:1 {Ans: ANSWER: c. M:N}38. A(n) only returns matched records from the tables that are being joined. a. outer join b. inner join c. equijoin d. theta join {Ans: ANSWER: b. inner join}33. , also known as RESTRICT, yields values for all rows found in a table that satisfy a given condition. a. INTERSECT b. UNION c. DIFFERENCE d. SELECT {Ans: ANSWER: d. SELECT}