What is an Entity-Relationship diagram?

What is an Entity-Relationship diagram?

- It is a graphical representation of tables with the relationship between them.

What is an Entity-Relationship diagram?

ER diagram is a conceptual and abstract representation of data and entities. ER is a data modeling process, which is to produce a conceptual schema of a system, often an RDBMS and the needs in top down fashion. ER diagrams are derived by using this model