Multiple choice technology

In transformer stage,A null value in the input column will cause the row to be dropped or, if a reject link has been defined, rejected.This will happen under what are all the conditions given below

  1. An input column is used in an output column derivation expression

  2. An input column is used in an output column constraint.

  3. An input column is used in a stage variable derivation.

  4. An output column is mapped directly from an input column, with a straight assignment expression
Reveal answer Fill a bubble to check yourself
A,B,C Correct answer
Explanation

In DataStage transformer stages, nulls in input columns used in derivations (A), constraints (B), or stage variable derivations (C) cause row rejection. Direct column mapping (D) preserves nulls without rejection. This prevents null propagation errors in downstream expressions.

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