database-migrations

Zero-downtime database migrations require strategies that avoid locking tables during schema changes, ensuring minimal disruption during deployments. This Skill provides best practices for safe, reversible schema changes and data migrations across PostgreSQL and MySQL.

Rolling back schema changes in PostgreSQL requires effective rollback strategies built into your migration workflow. This Skill provides guidance on reversible database schema changes and safe rollback processes to prevent data loss.

Backfilling data during a database migration involves transforming and populating new columns without causing downtime. This Skill assists with running data migrations safely, including backfilling and transforming data across various ORMs.

Yes, this database migration guidance includes ORM-specific workflows and best practices for Prisma, Drizzle, Django, TypeORM, and golang-migrate. It ensures safe schema changes and rollbacks tailored to your ORM tooling.

Yes, implementing these database migration workflows requires existing knowledge of database management and ORM tooling. The guidance focuses on advanced zero-downtime operations and safe practices rather than introductory database concepts.

Database schema changes cause downtime when operations lock tables or block concurrent queries. You can avoid it by following zero-downtime migration practices, splitting changes into reversible steps, and using ORM-specific workflows provided by this Skill.