Enterprise Migration Patterns
Use these references to inspect how an existing database job could be decomposed into explicit collection, transformation, and delivery stages. Neither reference is an automated migration tool or an assessed deployment.
Choose a reference
| Reference | Use it to inspect | Boundary |
|---|---|---|
| DB2 to BigQuery | Schema mapping, field reduction, lineage fields, and cloud delivery | DB2 and BigQuery remain external systems |
| Nightly backup | Table selection, recovery metadata, checksums, and object paths | PostgreSQL and object storage remain external systems |
Migration sequence
- Capture the current job's inputs, outputs, schedules, failure behavior, and recovery procedure.
- Reproduce representative transformations with synthetic or approved test data.
- Compare outputs deterministically, including rejects and missing records.
- Exercise credentials, network boundaries, retries, idempotency, and recovery in your environment.
- Define cutover and rollback outside these examples.
Evidence boundary
Both families are architecture references with no assessed operating envelope. Commercial outcomes, recovery behavior, regulatory obligations, and deployment support depend on your contracts, data, infrastructure, and testing.