Ultimate Guide to ER Diagrams

An Entity Relationship Diagram (ERD) is a visual representation of different data using conventions that describe how these data are related to each other. For example, the elements writer, novel, and consumer may be described using ER diagrams this way: In the diagram, the elements inside rectangles are called entities while the items inside diamonds denote the relationships between entities. This ER diagram tutorial for beginners covers most things related to ER diagram, for quick [...]