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

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