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Typically classified as a fourth-generation programming language, it utilizes an English-like syntax to simplify software development. [1] The language was called PROGRESS or Progress 4GL up until version 9, but in 2006, PSC changed the name to OpenEdge Advanced Business Language (OpenEdge ABL), in order to overcome a presumed industry ...
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.
The suite included applications-by-forms (ABF), an early 4GL computer programming language. It provided an ASCII form painter, which automatically bound form fields to a database using ABF, a programming language, with embedded SQL, simplifying the task of making a "CRUD" application for textual data.
Progress Software Corporation is an American public company that produces software for creating and deploying business applications. Founded in Burlington, Massachusetts with offices in 16 countries, the company posted revenues of $531.3 million (USD) in 2021 and employs approximately 2100 people.
Standing originally for Distributed Resource System, [1] the full name was later dropped in favour of the abbreviation. During the mid-1980s separate Office Systems business units had produced a disparate range of products including IBM-compatible PCs such as the PWS (a PC/AT clone), small servers branded DRS, and various larger Unix servers ...
Unify initially focused on providing databases and 4th-generation programming language (4GL) development tools for the Unix platform, but with Windows taking over the desktop computer Unify released VISION, a 4GL cross-platform development tool that supports Windows, Linux and Unix. The company's total revenue for fiscal year 2014 was $31.0 ...
An interactive environment in which any 4GL statement may be typed and immediately processed (comparable to interactive tools like PHP or Perl) Relational database features, supporting lookup tables and the other elements of a normalized relational database; Powerful set-at-a-time operations under the control of simple imperative commands
Decision tables can be used as an aid to clarifying the logic before writing a program in any language, but in the 1960s a number of languages were developed where the main logic is expressed directly in the form of a decision table, including: Filetab