Guides ยท Technology
Database Migration Strategy Basics
Move data with minimal downtime
Database migration strategy combines expand/contract schema changes, background backfills, feature flags, and rollback plans to move data or tables with minimal downtime and risk.
- database migration
- expand contract
- backfill
- rollback
- schema
Plan
Assess impact; choose expand/contract; design backfill and cutover.
Execute
Add new schema, backfill safely, gate usage with flags.
Rollback
Keep old paths until confident; rehearse recovery and metrics.
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