Third Normal Form

Third Normal Form (3NF) is a database organization principle that ensures data is stored efficiently and without unnecessary repetition. It requires that all data is kept in such a way that each piece of information depends directly on the primary key, and no non-essential or redundant data is stored. This makes updates easier and reduces the chance of inconsistencies. Essentially, 3NF helps keep the database clean, organized, and efficient by ensuring each fact is stored once and only where it logically belongs.