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Database Migrations Without Downtime in Production
Run schema migrations on production databases without downtime: expand-contract, backward-compatible changes, blue-green data and safety checks.
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Run schema migrations on production databases without downtime: expand-contract, backward-compatible changes, blue-green data and safety checks.

Run database schema migrations without downtime using expand-contract patterns, backward-compatible changes and phased rollouts that keep serving traffic.

Schema changes are the most dangerous deploys — here are the patterns for zero-downtime migrations, rollback safety, and avoiding data loss.