Description: The ‘EntityRelationship’ refers to the association between different entities in a database, where each entity represents an object or concept that has an independent existence. In the context of relational databases, entities can be tables that contain data about a specific topic, such as customers, products, or orders. The relationship between these entities is established through primary and foreign keys, allowing for structured integration and access to data. This relationship is fundamental for maintaining data integrity and facilitating complex queries, as it enables users to retrieve information from multiple tables efficiently. Relationships can be of various types, such as one-to-one, one-to-many, or many-to-many, depending on how entities are linked to each other. Proper definition and management of these relationships are crucial for effective database design, as they influence the performance, scalability, and maintainability of the database management systems (DBMS).
