database-migration

Installation
SKILL.md

Database Migration

Provides comprehensive guidance for migrating databases between engines, versions, platforms, and architectures. Covers both schema and data migration with strategies for minimizing downtime and ensuring data integrity.

Migration Decision Tree

1. Identify Migration Type:

  • Same engine (PostgreSQL → PostgreSQL)? → Homogeneous migration
  • Different engine (Oracle → PostgreSQL)? → Heterogeneous migration
  • Version upgrade only? → In-place or dump/restore
  • Cloud migration? → Consider cloud-native tools

2. Assess Downtime Requirements:

  • Can tolerate hours of downtime? → Dump and restore
  • Need minimal downtime (minutes)? → Replication with cutover
  • Require zero downtime? → See zero-downtime-migration-strategies.md
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Jan 24, 2026