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Explain ETL process flags and segregation of steps.

SQLeasy0.4 min readPremium
Frequency
Low
Asked at 1 company
Category
487
questions in SQL
Difficulty Split
130E|271M|86H
in this category
Total Bank
1,863
across 7 categories
Asked at these companies
Gartner
Key Concepts Tested
airflowetl
Expert AnswerPremium
72 wordsInterview-ready
**Architectural Logic**: Flags enable observability, restartability, and audit. **Flags**: STARTED, RUNNING, SUCCESS, FAILED; custom: DATA_QUALITY_FAILED, PARTIAL_SUCCESS. **Segregation**: Extract, Transform, Load as distinct tasks; each has status. **Why**: Monitoring; resume from failed step; audit trail. **Example**: Log batch_id, step_name, status, rows_processed, timestamp. Orchestrators (Airflow) use task states. **Scalability**: Idempotent steps; flags enable partial rerun....
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