Explanation:Composite attributes can be divided into subparts (that is, other attributes). 6. The attribute AGE is calculated from DATE_OF_BIRTH . The attribute AGE is
A. Single valued
B. Multi valued
C. Composite
D. Derived
Answer:A
Explanation:Composite attributes can be divided into subparts (that is, other attributes). 6. The attribute AGE is calculated from DATE_OF_BIRTH . The attribute AGE is
A. Single valued B. Multi valued C. Composite D. Derived
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