The Third Normal Form (3NF)

Third Normal Form (3NF) is a way to organize a database so that data is stored efficiently and without redundancy. It requires that all data depends only on the main key (the unique identifier for a record), and that there are no unnecessary dependencies between non-key data. This means each piece of information is stored only once, reducing duplication and making updates easier. Essentially, 3NF ensures that the database is structured logically so that data is accurate, consistent, and easier to maintain.