Explanation:The value for this type of attribute can be derived from the values of other related attributes or entities. 7. Not applicable condition can be represented in relation entry as
A. NA
B. 0
C. NULL
D. Blank Space
Answer:A
Explanation:The value for this type of attribute can be derived from the values of other related attributes or entities. 7. Not applicable condition can be represented in relation entry as
A. NA B. 0 C. NULL D. Blank Space
Explanation:NULL always represents that the value is not present. 8. Which of the following can be a multivalued attribute ?