database-migrations

Database Migration Patterns Safe, reversible database schema changes for production systems. When to Activate Creating or altering database tables Adding/removing columns or indexes Running data migrations (backfill, transform) Planning zero-downtime schema changes Setting up migration tooling for a new project Core Principles Every change is a migration — never alter production databases manually Migrations are forward-only in production — rollbacks use new forward migrations Schema and data migrations are separate — never mix DDL and DML in one migration Test migrations against production-sized data — a migration that works on 100 rows may lock on 10M Migrations are immutable once deployed — never edit a migration that has run in production Show more Installs 1.7K Repository affaan-m/ecc GitHub Stars 239.2K First Seen May 19, 2026 Security Audits Gen Agent Trust Hub Pass Socket Pass Snyk Pass