Here is a database ER diagram for employment. A Database ER (Entity-Relationship) Diagram is a visual representation of the structure and relationships between different entities in a database. This template shows how different tables or entities such as employees, sales office and owners are related to each other through common attributes or keys, and how data is stored and organized within the database. A Database ER Diagram is an important tool for database designers and developers who are responsible for creating and maintaining complex databases.