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      PNC Financial Services Group

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      Data Analyst II : entretien chez PNC Financial Services Group

      Question d’entretien chez PNC Financial Services Group

      Entretien pour Data Analyst II

      Asked about SQL and ETL process

      Réponse à la question d'entretien

      Utilisateur anonyme

      6 sept. 2015

      SQL is a structured language developed initially at IBM for managing and extracting data from relational databases. ETL is extract,transformation, and load. ETL is a process of moving data from a data source and applying needed transformations, and then applying the answer to the target source with the applied transformations.

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