Explanation: The first normal form is used to eliminate the duplicate information. 8. Which forms has a relation that possesses data about an individual entity:
A. 2NF
B. 3NF
C. 4NF
D. 5NF
Answer:A
Explanation: The first normal form is used to eliminate the duplicate information. 8. Which forms has a relation that possesses data about an individual entity:
A. 2NF B. 3NF C. 4NF D. 5NF
Explanation: A Table is in 4NF if and only if, for every one of its non-trivial multivalued dependencies X \twoheadrightarrow Y, X is a superkey—that is, X is either a candidate key or a superset thereof. 9. Which forms are based on the concept of functional dependency: