https://www.gliffy.com/blog/how-to-draw-an-entity-relationship-diagram
Entity Relationship Diagrams | ERD Tutorial | Gliffy
Entity relationship diagrams, also called ER diagrams or ERDs, are the standardized way to visualize the structures of databases. Learn how to draw an ERD with...
entity relationship diagrams
https://mermaid.ai/open-source/syntax/entityRelationshipDiagram.html
Entity Relationship Diagrams | Mermaid
Create diagrams and visualizations using text and code.
entity relationship diagrams