What is a Transformation? - ETL
ETL (extract, transform, and load) Testing Interview Questions
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69. What is a Transformation? - ETL
A transformation is a repository object that generates, modifies, or passes data. Transformations in a mapping represent the operations the PowerCenter Server performs on the data. Data passes into and out of transformations through ports that you link in a mapping or mapplet. Transformations can be active or passive. An active transformation can change the number of rows that pass through it. A passive transformation does not change the number of rows that pass through it.
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