1. Fourth Normal Form (4NF)

2. Multivalued Dependencies :-
Multivalued dependency (MVD) X Y specified on relation schema R. Where X and Y are both subsets of R,
Hence X  Y implies X Z.
 It is sometimes written as X Y/Z.

3. Fourth Normal Form (4NF)
Definition
a relation R is in 4NF if and only if the following conditions are satisfied simultaneously:
R is already in 3NF or BCNF.
If it contains no multi-valued dependencies.

4. Example

5. 4 NF CX Course Text Physics Basic Mechanics Principles of options
Maths
Vector Analysis
Trigonometry

6. Example -2 Flattened Data Vehicle Dealer Model Maruti Competent
Baleno
Aganil
Link Motor
Scooter
ABC
Bajaj
LML

7. 4NF