Multiple choice technology databases

Which of the following port is used only in unconnected look up not in connected look up?

  1. Input

  2. Variable

  3. Return

  4. Output
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The Return port (R) is specific to unconnected Lookup transformations - it returns the lookup value to the calling expression. Connected lookups use Input/Output/Lookup ports in the data flow. The Return port does not exist in connected lookup configuration because connected lookups pass data through the pipeline.

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