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On the Expressive Power of Klaim-based Calculi.

Rocco De NicolaDaniele GorlaRosario Pugliese
Published in: EXPRESS (2004)
Keyphrases
  • expressive power
  • first order logic
  • query language
  • relational algebra
  • data complexity
  • computational properties
  • transitive closure
  • databases
  • relational calculus
  • user defined aggregates