Explanation:None. 9. Data integrity constraints are used to:
A. Control who is allowed access to the data
B. Ensure that duplicate records are not entered into the table
C. Improve the quality of data entered for a specific property (i.e., table column)
D. Prevent users from changing the values stored in the table
Answer:A
Explanation:None. 9. Data integrity constraints are used to:
A. Control who is allowed access to the data B. Ensure that duplicate records are not entered into the table C. Improve the quality of data entered for a specific property (i.e., table column) D. Prevent users from changing the values stored in the table
Explanation:None. 10. Which of the following can be addressed by enforcing a referential integrity constraint?