In the ER diagram, an entity can be represented as rectangles.Ĭonsider an organization as an example- manager, product, employee, department etc. The address can be another entity with attributes like city, street name, pin code, etc and there will be a relationship between them.Īn entity may be any object, class, person or place. In this database, the student will be an entity with attributes like address, name, id, age, etc. In ER modeling, the database structure is portrayed as a diagram called an entity-relationship diagram.įor example, Suppose we design a school database.It also develops a very simple and easy to design view of data. It develops a conceptual design for the database.This model is used to define the data elements and relationship for a specified system. ER model stands for an Entity-Relationship model.Next → ← prev ER (Entity Relationship) Diagram in DBMS
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