data migration
Move or transform existing records with validation and a controlled cutover.
Use this when An application must move from one database or data layout to another.
without the term
“Move these records to the new store, including updates during the copy, and prove the cutover preserves important data.”
with the term · How do you ask a model for data migration?
Plan this data migration with concurrent-write handling, reconciliation, cutover, and rollback. Verify critical records and invariants.
What is data migration?
Data migration transfers or transforms records between locations or representations. A schema migration changes structure; a data migration must also reconcile the records, ongoing writes, and the moment readers switch.
Why does data migration matter when vibe coding?
An agent can finish a bulk copy while updates made during the copy never reach the target.
How do you do data migration?
Define snapshot, change capture or write pause, mappings, reconciliation, cutover, and rollback. Check counts, sampled values, deletes, and critical invariants before routing traffic.
What goes wrong with data migration?
Matching row counts alone does not establish equivalent data. A rollback after new target-only writes needs a recovery strategy.
Sources for this entry
- AWS DMS: Terminology and concepts
Migration tasks can use full load and ongoing change capture; cutover and validation remain explicit steps.
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