FastAPI Alembic Setup | Existing Database Baseline Migration | No Data Loss | Hindi

In this Hindi FastAPI tutorial, we will learn how to set up Alembic migration in an existing FastAPI project where the database tables are already created. If you have already created your tables using Base.metadata.create_all() and now want to manage database schema changes properly, then this video will help you understand the correct Alembic setup and baseline migration process. In this video, we will not directly modify the database. First, we will safely connect Alembic with our existing database and create a baseline revision without data loss. 📌 Topics Covered: ✅ What is Alembic in FastAPI? ✅ Why do we need database migration? ✅ create_all() vs Alembic migration ✅ How to install Alembic ✅ How to initialize Alembic in FastAPI project ✅ Alembic folder structure ✅ alembic.ini configuration ✅ alembic/env.py setup ✅ target_metadata = Base.metadata ✅ Import SQLAlchemy models in Alembic env.py ✅ Existing database baseline migration ✅ What is alembic stamp head? ✅ How to verify current migration revision ✅ Safe Alembic setup without data loss 📌 Important Concept: In development, we often use: Base.metadata.create_all(bind=engine) But in production or real-world projects, database schema changes should be managed using Alembic migrations. 📌 What is Baseline Migration? Baseline migration means we tell Alembic that our current database schema already exists and this is our starting point. This is useful when we add Alembic later in an existing FastAPI project. 📌 Commands Covered: pip install alembic alembic init alembic alembic revision -m "baseline existing database" alembic stamp head alembic current 📌 Next Video: In the next video, we will add a new phone column in the students table using Alembic migration and update the database without losing existing data. If you are learning FastAPI, SQLAlchemy, JWT Authentication, RBAC, File Upload, Email, Background Tasks and now want to learn production-level database migration, then this video is for you. ▶️ Watch the Complete FastAPI Playlist:    • FastAPI Complete Course in Hindi | Beginne...   🔔 Subscribe to the Channel:    / @vipin-ai-v3u   💻 GitHub Code: https://github.com/vipin-chauhan-ai/f... #FastAPI #Alembic #SQLAlchemy #Python #DatabaseMigration #HindiTutorial