The process of extracting data from source systems and bringing it into the data warehouse is commonly called ETL (for Extract, Transform & Load). This Wikipedia article provides you with a good introductory overview of the ETL process, including some tips for performing it and the challenges that you might encounter when doing so. At the bottom of the article, you will find extra relevant sources and references if you want to learn more about the topic.

Click here to read the article.

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