database-migrations

Reversible database migrations require numbered SQL files with explicit Up and Down sections. This structure ensures schema changes like adding columns or creating indexes can be applied and rolled back deterministically across environments.

Schema versioning organizes database changes into sequentially numbered files under a migrations directory. This provides clear sequencing for ordered releases, ensuring every environment applies incremental SQL changes in the exact same order.

Production-safe indexing requires using concurrent index creation practices to reduce downtime risks. Combined with transactional atomicity, this ensures database schema changes do not block existing deployments or disrupt production traffic.

Non-destructive creation patterns involve writing incremental SQL migrations that add schema elements rather than altering or dropping them in place. This approach maintains backward compatibility and ensures changes can be safely rolled back using paired Down logic.

No specific framework is required. You apply these migration patterns by creating numbered SQL files with Up and Down sections in your migrations directory, then running them through whatever database migration system your project already uses.