Multiple choice technology

How many selector columns can switch stage have ?

  1. 3

  2. 2

  3. 1

  4. 4
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C Correct answer
Explanation

The Switch stage in DataStage uses a single selector column to route rows to different output links based on that column's value. Having multiple selector columns would make the routing logic ambiguous and impractical, similar to how a switch statement in programming evaluates one expression at a time.

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