Database Migrations

Version Control: Track migrations using tools like Flyway, Liquibase, or Sequelize.

Create Safe Migration Scripts:

• Avoid destructive changes like dropping columns immediately
• Break migrations into additive steps:
  • Add new columns
  • Backfill data
  • Remove old columns later

Testing:

• Test migrations in a staging environment with a copy of production data

Rollback Plans:

• Write scripts to revert migrations in case of failure

Zero-Downtime Deployment:

• Use techniques like dual writes and feature flags to ensure smooth transitions