ER diagrams represent the E-R model in a database, making them easy to convert into relations (tables). These diagrams serve the purpose of real-world modeling of objects which makes them intently useful. Learn what is ERD, why ERD, and how to draw ERD for database design, debugging, creation, and patching. See ERD symbols, notations, examples, and a free ERD tool. built by Draw Entity-Relationship Diagrams , Painlessly 😎 A free, simple tool to draw ER diagrams by just writing code. Designed for developers and data analysts. ER-Diagram is a pictorial representation of data that describes how data is communicated and related to each other. Any object, such as entities, attributes of an entity, sets of relationship and other attributes of relationship can be characterized with the help of the ER diagram .
