E-commerce Database Schema ER Diagram Example
A practical schema walkthrough for users, products, categories, orders, line items, and payments.
Database Design Blog
Practical guides for converting SQL DDL into diagrams, documenting relational schemas, and improving database design reviews.
Start with the worked database schema examples when you need complete SQL models with relationship and integrity notes.
Foreign Key Relationship Guide for ER Diagrams
Learn how to infer one-to-many, one-to-one, many-to-many, optional, and self-referencing relationships from SQL DDL.
How to Convert SQL to ER Diagram
A step-by-step guide to turning CREATE TABLE statements into clear entity-relationship diagrams.
Database Design Best Practices
Normalization, keys, naming, indexing, and schema review practices for scalable relational databases.
MySQL CREATE TABLE Syntax Reference
A practical reference for MySQL table definitions, constraints, keys, and schema examples.
PlantUML vs Mermaid for ER Diagrams
A comparison of two text-based diagram formats for database documentation workflows.