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Foil 41 What is a 3GL or 4GL?

From General Discussion of Parallel Relational Databases CPS600 Spring Semester -- April 1995. by Gang Cheng Marek Podgorny (Geoffrey Fox) * See also color IMAGE
Historians of programming languages and database people tend to classify programming languages by generations:
1GL --- machine language (in 0/1 binary)
2GL --- assembly language (in symbolic machine language)
3GL --- high-level programming language (structural, modular and usually procedural)
4GL --- non-procedural (declarative). Most AI languages are 4GL.

Northeast Parallel Architectures Center, Syracuse University, npac@npac.syr.edu

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