Utilize ER diagrams to illustrate relationships between database entities
ER diagrams utilize symbols to express three kinds of information: entities (or ideas), relationships, and characteristics.
About Entity-Relationship Diagrams
In industry standard ER diagrams, rectangles or squares represent entities, that are tables that hold particular information in a database. Diamonds represent relationships, that are the interactions between your entities. Ovals represent characteristics, that is information that defines an entity.
Although entity-relationship diagrams may look complicated, these diagrams help knowledgeable users comprehend database structures at a high degree without associated details. Fortsätt läsa ”Entity-Relationship Diagram. An entity-relationship diagram is a specialized visual that illustrates the relationships between entities in a database.”