Multiple choice technology

Which two partitioning methods are keyless?

  1. Round Robin

  2. Same

  3. Hash

  4. Modulus
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A,B Correct answer
Explanation

Keyless partitioning methods distribute or maintain data flow without requiring a key column value. Round Robin rotates rows sequentially across partitions without reading any field. Same partitioning preserves the existing partitioning from the previous stage without applying any key-based logic. In contrast, Hash and Modulus both require a key column to calculate partition assignments.

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