database-migration_skill

Guides database migration projects including engine changes (MySQL to PostgreSQL, Oracle to PostgreSQL, SQL Server to PostgreSQL), version upgrades, cloud migrations (on-premise to RDS/Cloud SQL/Azure Database), schema migrations, zero-downtime migrations, replication setup, and data migration strategies. Covers homogeneous and heterogeneous migrations, ETL processes, cutover procedures, and rollback plans. Use when migrating databases, changing database engines, upgrading database versions, moving databases to cloud, or when users mention "database migration", "DB migration", "PostgreSQL migration", "MySQL to Postgres", "Oracle migration", "database upgrade", or "cloud database migration".