Database Relationships

Database relationships describe how different sets of data connect and interact with each other. Think of it like a network of related information: for example, a customer record linked to their orders, or a book linked to its author. These relationships help organize data efficiently, allowing us to find, update, or analyze related information easily. They can be one-to-one (one record matches one other), one-to-many (one record links to many), or many-to-many (many records relate to many others). Properly managing these relationships ensures data consistency, integrity, and efficient retrieval.