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SheerPower 4GL has several key features: It is free for hobbyists and non-profit organizations. Web scripting features make it fast and easy to develop dynamic web pages using SheerPower's BASIC-like syntax. [3] Version 5.0 was the official release containing the syntax and logic for web scripting in SheerPower.
The development of the 4GL was influenced by several factors, with the hardware and operating system constraints having a large weight. When the 4GL was first introduced, a disparate mix of hardware and operating systems mandated custom application development support that was specific to the system in order to ensure sales.
OpenROAD, which stands for "Open Rapid Object Application Development", is a fourth-generation programming language (4GL) and development suite from Actian Corporation. It includes a suite of development tools, with built-in Integrated development environment (IDE) (Written in OpenROAD), and Code Repository.
Basic4GL (B4GL; from Basic for openGL) is an interpreted, open source version of the BASIC programming language which features support for 3D computer graphics using OpenGL. While being interpreted, it is also able to compile programs on top of the virtual machine to produce standalone executable programs.
In the early 1990s, a new PC-based tool for developing LINC specifications was released, the LINC Development Assistant (LDA). LDA was written in a mixture of Smalltalk and C++ rather than the LINC 4GL (the latter of which was not intended to run on a personal computer). From version 17, it was intended that all development be done with LDA.
In 1992, CorVision Version 5 was released with Query and support for Unix. Query allowed read-only access by users and developers to a systems database backend. Where this seemed a desirable facility, allowing users to create "use once then throw away" reports without calling on developers this had a nasty habit of causing performance issues.
SB/XA is a 4GL development and runtime environment originally written for the Pick family of computer databases/environments and now part of the Rocket U2 software suite.. The SystemBuilder environment comprises SB+ Server, often running on a Rocket U2 database, SBClient which runs as a Microsoft Windows desktop client and the SB/XA Communications server for browser clients.
PROIV runs OS-independent application code in an OS-specific virtual machine, allowing a user application to run unaltered on different computing platforms. [5] As of August 2021, Zellis claims support for PROIV on Microsoft Windows (workstation and server), Red Hat Linux, IBM AIX, and Oracle Solaris; with Oracle, SQL Server, PostgreSQL, and IBM C-ISAM as the database backend.