Definition:ETL (Extract, Transform, Load)
ETL is a data integration pipeline process that Extracts data from sources, Transforms it into target schema, and Loads it into warehouses.
Detailed Technical Explanation
Business Perspective
Ensures corporate business intelligence dashboards present accurate, unified operational metrics.
Technical Perspective
Executed using pipeline orchestrators (Apache Airflow) running scheduled batch or real-time streaming jobs.
Real-World Example
Extracting daily hospital bed intake records, stripping patient PII, and loading aggregate stats into an analytics warehouse.
Common Architectural Mistakes
- ✗Lack of Data Validation: Failing to catch malformed source records before loading into analytical schemas.
Ecosystem Integration
Engineering Services & Solutions
Technology Hub
Frequently Asked Questions
ETL vs ELT?
ETL transforms data before loading; ELT loads raw data into cloud warehouses first and transforms it in place.
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