Normalization Forms

Database Design: Normalization and Beyond Good database design starts with normalization. It helps remove repeated data, keeps information consistent, and makes updates safer. By splitting data into related tables and linking them with keys, you reduce the chance of mistakes when values change. Two big ideas guide this work: dependencies and keys. A functional dependency shows that one set of attributes determines another. A foreign key connects records across tables, so you can join data without duplicating it. ...