ETL vs. ELT: Key differences and when to use each?
This tests your understanding of modern data architecture trade-offs. A good answer explains the T vs. L order, then links ETL to structured, legacy systems and ELT to flexible, cloud-native data lakes/warehouses.
This tests your grasp of modern data architecture trade-offs, particularly where compute happens and how quickly raw data is available. A strong answer defines the order of operations (Transform vs. Load), connects ETL to legacy structured data needs, and ELT to modern cloud systems that handle raw data and leverage scalable compute for transformations. A common mistake is failing to discuss the critical implications for cost, compliance, and required skill sets.
Read the original → aws.amazon.com
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- #etl
- #elt
- #system design
- #analytics
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