Multiple choice technology databases

which is an passive transformation

  1. filter

  2. aggregator

  3. expression

  4. none
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Expression transformations are passive because they process each row independently without changing the number of rows passing through. Unlike Active transformations (Filter, Aggregator) which can add, remove, or group rows, Expression only modifies column values.

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