Database Migration Strategies for Next.js and Supabase Production Apps

You've built your Next.js app with Supabase. It works perfectly in development. Now you need to deploy to production and realize: how do I safely change the database schema without breaking everything?

Database migrations are how you version control your schema and deploy changes safely. This guide covers everything from basic migrations to zero-downtime production deployments.

Prerequisites

Supabase project (local and production)