Safe Database Deployments: Prisma's Zero-Downtime Migration Playbook

Database migrations are a critical source of production outages, yet many teams lack a systematic approach to managing them safely. This guide demonstrates how to implement zero-downtime strategies using Prisma's expand-then-contract pattern, ensuring smooth deployments even under live traffic. Mastering these patterns—from avoiding table locks to handling rollbacks—is essential for maintaining service reliability at scale.