What is the primary reason to keep raw source data after loading?
- A Transformations can be corrected and re-run without re-extracting from source
- B It satisfies backup requirements
- C It improves query speed
- D It reduces storage cost
Answer
Transformations can be corrected and re-run without re-extracting from source
Business definitions change over time, and retaining raw data means history can be recomputed under the new definition.





