Answer:
The 3NF form is a "eliminate columns not dependent on the key" in the database design.
Step-by-step explanation:
3NF form stands for third normal form says that it is necessary to remove all column that references to all related information that is not based on the primary key.
- It is difficult to store data into one table to remove this problem we use the normalization, there are many forms in the normalization that are "1NF, 2NF, 3NF, and BCNF".
- The main purpose to use 3NF (normal form) in the database is to remove the data duplication.