ETL vs. ELT: Key Differences and When to Use Each
This tests your grasp of data pipeline trade-offs. Define ETL (transform first) vs. ELT (load first), contrasting transform location and data state. A red flag is ignoring how cloud warehouses make ELT the modern default for flexibility.
This tests your grasp of data pipeline trade-offs, specifically where transformation compute occurs and the state of data at rest. A great answer defines ETL (transform-before-load) and ELT (load-before-transform), then contrasts them on transform location, data state on load, and flexibility. The key red flag is treating them as simple anagrams without explaining why scalable cloud data warehouses have made ELT the modern standard for most use cases.
Read the original → aws.amazon.com
- #data engineering
- #etl
- #elt
- #system design
- #analytics
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