Entity-Relationship (ER) model is a visual representation of the table's structure and the relationships between logically related tables. In ER modeling the database structure is represented as a diagram known as ER diagram (ERD).An ER diagram gives a better understanding of the overall database structure.. Learn how to create a simple database diagram from an existing database using SQL Server Management Studio.
Generate database entity-relationship diagrams (ERD) to design well-structured databases using Database Diagram Tool provided by dbForge Studio for SQL Server. Try 30 days free trial!. Your database, diagrammed. The database schema diagram tool where teams design, review, and evolve together.