#21 Implement Table Relationships - One-to-Many in FastAPI & SQLAlchemy | Tutorial #fastapi

Description

Learn to implement database relationships in FastAPI using SQLAlchemy! Connect tables with foreign keys and create relationships. WHAT YOU'LL LEARN: ✅ Understanding database relationships types ✅ Creating foreign key columns ✅ Implementing one-to-many relationships ✅ Using SQLAlchemy relationship() function ✅ Back populate and lazy loading ✅ Accessing related data from models ✅ Creating tables with relationships ✅ Querying data across related tables RELATIONSHIPS COVERED: One-to-Many → One user has many posts Foreign Keys → Link tables together Relationship → SQLAlchemy ORM relationships Back Populate → Bidirectional relationships 📖 SQLAlchemy Relationships: https://docs.sqlalchemy.org/en/14/orm/relationships.html 🌐 TechSimPlus Learnings: https://techsimplus.com #fastapi #python #sqlalchemy #relationships #foreignkeys #database #onetomany #fastapitutorial #backend #webdevelopment #coding #programming #postgresql #pythonapi #techsimplus #databasedesign #genai