Multiple choice

Which of the following layers in distributed query processing decomposes the distributed calculus query into an algebraic query on global relations?

  1. Data localisation

  2. Global query optimisation

  3. Local query optimisation

  4. Query decomposition

  5. Entity

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

This layer in distributed query processing decomposes the distributed calculus query into an algebraic query on global relations.