Explanation:NULL always represents that the value is not present. 8. Which of the following can be a multivalued attribute ?
A. Phone_number
B. Name
C. Date_of_birth
D. All of the mentioned
Answer:A
Explanation:NULL always represents that the value is not present. 8. Which of the following can be a multivalued attribute ?
A. Phone_number B. Name C. Date_of_birth D. All of the mentioned
Explanation:Name and Date_of_birth cannot hold more than 1 value. 9. Which of the following is a single valued attribute