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Datalog Educational System

Posted on by Robin Ding Leave a comment Database Engines/Servers, Front-Ends
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The Datalog Educational System (DES) is a deductive database with Datalog, SQL, Relational Algebra, Tuple Relational Calculus and Domain Relational Calculus as query languages developed mainly for education. It can be used from most common Prolog interpreters over any supported OS and from portable executables (Windows, Linux and MacOS).

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Website http://des.sourceforge.net
Tags
License GNU Library or Lesser General Public License version 3.0 (LGPLv3)
Platform BSD Linux Solaris Windows
Features
  • Datalog, SQL, Relational Algebra, Tuple Relational Calculus and Domain Relational Calculus query languages
  • Aggregates, nulls, duplicates
  • ODBC connections to relational databases
  • Integrity constraints
  • Types
  • Modes
  • Textual API for pluggin to any sotware development system (Java, .NET, Python, ...)
  • Multiplatform, portable binaries, sources
  • Declarative debuggers and tracers
  • Test case generation
  • Hypothetical Reasoning (Decision Support)
  • Persistency (Business Intelligence)
  • Distributed computations