Multiple choice technology databases

Which of the following transformations cannot immediately precede Joiner transformation?

  1. Source Qualifier

  2. Sequence Generator

  3. External Procedure

  4. Update Strategy
Reveal answer Fill a bubble to check yourself
B,D Correct answer
Explanation

Sequence Generator and Update Strategy transformations cannot immediately precede Joiner transformations. The Joiner transformation expects specific input data structures that these transformations don't provide - Sequence Generator generates sequences while Update Strategy handles database operations.

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