In this Python FastAPI tutorial, we'll be learning how to add a database to our FastAPI application using SQLAlchemy. Up until now, we've been storing our data in a Python list in memory, which resets every time the server restarts. We'll fix that by connecting to a real SQLite database and setting up SQLAlchemy models with relationships between users and posts. We'll also look at why we use separate SQLAlchemy models and Pydantic schemas, and how to use FastAPI's dependency injection to manage database sessions. By the end, you'll have a solid foundation for database-driven FastAPI applications that you can later scale up to Postgres or MySQL. Let's get started...
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On this page of the site you can watch the video online Python FastAPI Tutorial (Part 5): Adding a Database - SQLAlchemy Models and Relationships with a duration of hours minute second in good quality, which was uploaded by the user Corey Schafer 13 January 2026, share the link with friends and acquaintances, this video has already been watched 17,023 times on youtube and it was liked by 657 viewers. Enjoy your viewing!