Your enterprise must decide whether to use a database management system. Which of the
following lists four advantages of using a DBMS?
Answer : C
Consider the relation shown in the exhibit. Which of the following SQL statements would
properly add information for a new employee?
Answer : D
Which type of relational integrity is violated if a primary key in a database has a null value?
Answer : A
What is a data dictionary?
Answer : D
Which statement accurately describes a characteristic of attributes?
Answer : C
What is the most important service provided by a database management system?
Answer : A
Which concurrency control method should be used only when conflicts between transactions
rarely occur?
Answer : C