Clarion was created by Bruce Barrington, one of the founders of healthcare firm "HBO & Company" (later acquired by McKesson Corporation ), and a small team of developers. The first release of the Clarion language was a DOS product called Clarion 1.0 and was first released in April 1986. Reports, as a mechanism for data output are also a native data type of the language. Database Tables are a native data type in the language. Thus the language has commands that deal directly with the reading and writing of databases. Later on, early releases for Microsoft Windows were historically notable for providing a screen painter and report writer, at a time when most programming languages for MS-Windows required the user to write code to create each screen.Ĭlarion is a data-centric language, meaning that its primary function is the management and manipulation of data. It is notable as being an early (although primitive) Computer-aided software engineering tool for MS-DOS with support for defining relationships between data and automatically generating application code. Advanced Clarion programmers can create their own templates, or edit the existing ones.Ĭlarion is historically notable as being one of the first computer languages for MS-DOS that provided a 4GL screen painter, report writer and native database access. An "embeditor" shows the developer the code that will be generated and embed points where the developer can enter their own hand-code in the context of the template generated code. One of the Clarion Development Environment's primary features is its use of "templates" which are used in conjunction with a code generator (named AppGen) to produce much of the repetitive, time consuming code that is typically required when producing an application. It is compatible with ISAM, SQL and ADO data access methods, reads and writes several flat file desktop database formats including ASCII, CSV, DOS (Binary), FoxPro, Clipper, dBase, or all SQL RDBMS databases via ODBC, MS SQL Server, Sybase SQL Anywhere and Oracle through the use of accelerated native database drivers, and XML, Clarion can be used to output to HTML, XML, plaintext, and PDF, among others. Clarion Developer(s)Ĭlarion is a commercial, 4GL, multi-paradigm, programming language and Integrated Development Environment from SoftVelocity used to program database applications.
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