IT Explanations

Clear explanations of IT concepts, protocols, architecture and enterprise technologies.

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Infrastructure, cloud and security
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The ETL process, with data extracted from multiple sources, transformed and validated.

What Is ETL? Extract, Transform, Load Explained

ETL extracts data from sources, transforms it, and loads it into a warehouse. Covers the three stages, ETL vs ELT, tools (SSIS, ADF, Airflow, dbt), and when to use each approach. Essential for data engineering and business intelligence.

Jul 20, 20267 min readintermediateEmanuel De Almeida