The Informix-4GL reference article from the English Wikipedia on 24-Apr-2004 (provided by Fixed Reference: snapshots of Wikipedia from wikipedia.org)

Informix-4GL

Informix 4GL is a fourth-generation language developed by Informix around 1986.

It includes embeded SQL, a report writer language, a form language mixed with imperative capabilities (like functions, if and while statements, etc).

This language is still widely used to develop business aplications, and is now property of IBM.

In the meanwhile several companies have built clone versions of 4GL, some with extended functionalities, like GUI(s) and IDE(s), namely 4JS and Querix.

A company in the Latin America built a convertor to java.

There is an free GPL version called Aubit 4GL.

History

The beginning of 4gl was in 1985. Pcode came a few years later, maybe 1989 or so? For what it is worth, a fellow by the name of Chris Moloney was the chief architect of 4GL and Roy Harrington was one of chief architect of Informix Turbo engine.

There was severall flavors of 4gl. The "standard" 4gl is the one that arrives to today. Some good versions like 4gl for windows (wich included a window painter) and New Era (that was an OO 4gl) was discontinued due to bad strategic decision.

External links

• 4js - A French company that built a 4gl clone.
• Querix - A UK company that built a 4gl clone.
• Aubit 4gl - The free GPL 4gl clone and tools.

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