Get Design Database Relationship Diagram Example Download Zip Pictures. In other words, er diagrams help to explain the logical structure of databases. Browse the examples to spark ideas or use one as a template to get.
Overview of database design process.
For example, an employee may act as a supervisor for one or more employees, while an employee may. In the following er diagram we have two entities student. You're either designing a new schema or if you have an existing database you need to to document, you create a database diagram using data. In designing a database with an er diagram, we recognize that this is but one way to arrive at the objective the database.