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Datalog Educational System

 

DES 3.8 released. July 2014

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Web site last update: October 23, 2014

    The Datalog Educational System (DES) is a deductive database system with Datalog, SQL, and Relational Algebra as query languages.

    Features in short:

      • Free, open-source
      • Multiplatform, portable
      • Extended Datalog
      • Extended SQL
      • Extended RA
      • Duplicates
      • ODBC
      • Persistence
      • Outer joins
      • Aggregates
      • Optional types
      • Integrity constraints
      • Hypothetical reasoning
      • Declarative debuggers
      • Graphical tracers
      • Test case generation for SQL
      • Textual API
      • Tabling
      • Stratified negation
      • Full-fledged arithmetic

      See also: