Incremental loads and idempotency
Use incremental loads and idempotency to make decisions inspectable.
What you should be able to do
Independently: Design a rerun that does not duplicate the same batch.
Suggested prerequisites
A short guide
Use incremental loads and idempotency to make decisions inspectable. Design a rerun that does not duplicate the same batch. Read the indicated source section, identify its key concepts and conditions, and work through the example. Record inputs, sources, units and assumptions. Keep your method separate from the result, mark unanswered questions, and review the output against the checklist.
An example
Stable-key updates avoid unconditional duplicate appends.
Your task
Design a rerun that does not duplicate the same batch.
Start with this source
Read the indicated section relevant to incremental loads and idempotency and complete the applied task.
This source is awaiting renewed review. Try the task above and adjacent skills; reviewed sources will appear here.
Your learning checklist
Required items: 0 / 10 completed or already known
Next: Read a role through its responsibilities
Checklist statuses are self-reported; exercise scores are recorded separately. You can reset any item.
Try a practice set
Calculations and choices receive immediate checks. Review open responses yourself against the rubric. All examples are educational.