About this document
Understanding Entity Types and Attributes by SYED MUHAMMAD WAQAS is a document available to read on EtoBox.
An entity represents a real-world object like a person, place, thing, or concept. There are two types of entities: strong entities that can be uniquely identified and weak entities that require a strong entity to exist. Relationships connect entities and can be one-to-one, one-to-many, or many-to-many. Attributes further define entities and can be simple, composite, multivalued, derived, or a key that uniquely identifies an entity. Entities, attributes, and relationships are core components of an entity-rel
- Author
- SYED MUHAMMAD WAQAS
- Language
- EN