{"id":49833,"date":"2025-02-10T17:17:21","date_gmt":"2025-02-10T23:17:21","guid":{"rendered":"https:\/\/lansa.com\/?p=49833"},"modified":"2025-04-18T11:06:10","modified_gmt":"2025-04-18T16:06:10","slug":"what-is-rpg-programming-language-used-for","status":"publish","type":"post","link":"https:\/\/lansa.com\/blog\/application-modernization\/what-is-rpg-programming-language-used-for\/","title":{"rendered":"RPG Programming Language: All you Need to Know"},"content":{"rendered":"<p><b>RPG programming<\/b><span style=\"font-weight: 400;\"> is the backbone of many businesses, powering critical operations across a wide range of industries. Initially designed as a report-writing tool, it has evolved into a versatile tool for data processing, transaction management, and enterprise solutions. From building ERP systems to managing accounting processes, <\/span><b>RPG programming language<\/b><span style=\"font-weight: 400;\"> continues to prove its reliability and effectiveness in today\u2019s evolving market landscape. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">In this article, you will learn about the history and evolution of the <\/span><b>RPG programming language<\/b><span style=\"font-weight: 400;\">, how it is used in modern business applications, and the key industries that rely on it. <\/span><\/p>\n<div class=\"blue-box\">\n<h2><b>Key Insights<\/b><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">RPG (Report Program Generator) is an IBM-developed high-level programming language for business applications on IBM i that has evolved from report generation to a full-featured procedural language.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Modern RPG versions support SQL integration and API-based connectivity, enabling seamless data exchange between RPG applications and other enterprise systems.<\/span><\/li>\n<\/ul>\n<\/div>\n<p><span style=\"font-weight: 400;\">RPG Open Access enables seamless integration with cloud computing, web services, mobile devices, and external databases, extending its capabilities in the modern IT landscape.<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><\/p>\n<h2><b>What is the RPG Programming Language<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">The RPG (Report Programming Generator) Programming Language is a high-level programming language designed for business applications. <\/span><b>RPG programming language<\/b><span style=\"font-weight: 400;\"> is IBM\u2019s proprietary programming module, primarily used on IBM\u2019s midrange computer systems such as IBM i.<\/span><\/p>\n<p><b>RPG programming language<\/b><span style=\"font-weight: 400;\"> has undergone several changes over the years. It was developed by IBM in 1959 to replace punch card systems on the IBM 1401. <\/span><b>RPG language<\/b><span style=\"font-weight: 400;\"> has evolved into a full-fledged procedural programming language through several versions, from RPG I to RPG IV (also known as ILE RPG). During the early versions of the <\/span><b>RPG programming language<\/b><span style=\"font-weight: 400;\">, it was known for its program cycle, which processes data sequentially, making it ideal for report generation and business data handling.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Despite the rise of other programming languages, RPG remains one of the most popular languages for the IBM i Operating system.<\/span><\/p>\n<h2><b>RPG Language History<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">The <\/span><b>RPG programming language<\/b><span style=\"font-weight: 400;\"> has been the cornerstone for commercial applications, continually evolving to add new features, enhance functionality, and meet the needs of IBM i programmers. Let\u2019s dive into the history of the <\/span><b>RPG language<\/b><span style=\"font-weight: 400;\"> to understand how it has transformed over the years.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">1964: IBM System\/360 launches RPG (Report Program Generator), which offers basic file handling and calculation capabilities.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">1970s: RPG II enhanced functionality with data structures, subroutines, and conditional branching.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">1975: RPG III becomes widely adopted for its interactive capabilities and better data manipulation, including support for external procedures.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">1980s: RPG\/400 (later changed to RPG IV) is released for IBM AS\/400 systems, introducing an integrated development environment (IDE), object-oriented concepts, and structured programming.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">1995: RPG LE (Limited Edition) simplifies RPG IV for smaller systems and introduces a free compiler.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">2001: RPG ILE integrates RPG IV with IBM languages like COBOL, improving performance and code sharing.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">2003: A free RPG compiler for Windows and Linux launches, supporting open-source development.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">2008: RPG Free Edition introduces support for SQL, XML, and web services.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">2013: IBM i 7.1 includes RPG enhancements like new APIs, Unicode support, and advanced debugging tools.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">2015: The Open RPG Project fosters community-driven development and open-source libraries.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">2018: RPG\/CL enables embedding RPG code within CL commands for greater flexibility.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">2020s: RPG evolves with a focus on cloud integration, AI and machine learning APIs, and web application development.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">As technology advances, RPG continues to modernize, embracing web technologies, AI tools, and modern frameworks to ensure compatibility with tools that <\/span><b>RPG developers<\/b><span style=\"font-weight: 400;\"> use today.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Additionally,\u00a0 RPG IV\u2019s ILE compliance enhances functionality, performance, and multi-language integration, making it ideal for maintaining legacy systems while adapting to modern needs. This makes <\/span><b>RPG programming<\/b><span style=\"font-weight: 400;\"> a powerful tool for maintaining legacy applications while adapting to the demands of the modern development environment.<\/span><\/p>\n<h2><b>Who uses RPG?<\/b><\/h2>\n<p><b>RPG programming language<\/b><span style=\"font-weight: 400;\"> is mainly used by IT teams and software developers working on IBM systems. Many organizations that rely on IBM i systems utilize <\/span><b>RPG computer language<\/b><span style=\"font-weight: 400;\"> to create, update, and maintain their business processes, ensuring stability and efficiency.\u00a0<\/span><\/p>\n<h3><b>Industries That Depend on IBM i<\/b><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Finance &amp; Banking<\/b><span style=\"font-weight: 400;\"> \u2013 RPG is widely used in core banking systems, transaction processing, and financial reporting.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Manufacturing &amp; Supply Chain<\/b><span style=\"font-weight: 400;\"> \u2013 Companies use RPG for inventory management, order processing, and enterprise resource planning (ERP).<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Retail &amp; eCommerce<\/b><span style=\"font-weight: 400;\"> \u2013 Many retailers use RPG-driven systems for point-of-sale (POS), inventory control, and customer management.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Healthcare<\/b><span style=\"font-weight: 400;\"> \u2013 Hospitals and insurance companies leverage RPG applications for patient records, billing, and claims processing.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Government &amp; Public Sector<\/b> \u2013 <b>RPG coding language<\/b> is used in administrative and financial systems for local and national governments.<\/li>\n<\/ul>\n<h2><b>Why should developers learn RPG <\/b><b>programming?<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">There are plenty of reasons for learning RPG programming, including widespread use and in-demand skills. Let\u2019s find them out.<\/span><\/p>\n<ol>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Strong Demand for RPG Developers:\u00a0 <\/b><span style=\"font-weight: 400;\">Many businesses, especially in manufacturing, distribution, and finance, still rely on RPG-based legacy systems. As long as these systems remain in use, skilled RPG developers will continue to be in demand.<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Career Growth Opportunities: <\/b><span style=\"font-weight: 400;\">RPG programmers often focus on essential business functions like inventory management, supply chain operations, financial reporting, and logistics, leading to higher salaries and long-term career stability.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Integration with IBM i:<\/b><span style=\"font-weight: 400;\"> IBM i systems are used by many large enterprises, and they heavily rely on RPG. Learning RPG provides access to a stable, enterprise-level computing environment, allowing developers to expand their technical expertise.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Versatility in Business Applications: <\/b><span style=\"font-weight: 400;\">RPG is widely used for database management, report generation, and building interactive user interfaces, making it a valuable skill across various IT roles.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>User-Friendly Syntax: RPG programming<\/b><span style=\"font-weight: 400;\"> is known for its structured and easy-to-learn syntax, making it accessible even to those with minimal programming experience.<\/span><\/li>\n<\/ol>\n<h2><b>Are businesses still using <\/b><b>the RPG Programming Language?<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">IBM i (AS\/400) remains one of the leading enterprise platforms trusted by both small and large businesses to power critical operations. The majority of these companies are still using multiple RPG-based applications due to their stability, efficiency, and strong compatibility with IBM i.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Here are some of the factors that contribute to <\/span><b>RPG coding language\u2019s<\/b><span style=\"font-weight: 400;\"> ongoing use:<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Legacy System Dominance:<\/b><span style=\"font-weight: 400;\"> Many businesses have long-standing RPG-based applications that are highly reliable and optimized for business operations.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>IBM i Ecosystem Support:<\/b><span style=\"font-weight: 400;\"> IBM continues to enhance RPG with modern capabilities, ensuring compatibility with emerging technologies.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Skilled Workforce Demand:<\/b><span style=\"font-weight: 400;\"> Organizations require experienced RPG developers to maintain, optimize, and integrate IBM i applications with newer systems.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Cost-effective Modernization:<\/b><span style=\"font-weight: 400;\"> Replacing and rewriting RPG applications can be expensive. However, businesses can modernize existing RPG code to integrate with SQL, APIs and web services.\u00a0<\/span><\/li>\n<\/ul>\n<h2><b>Does the market lack RPG developers with high skills?<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Thousands of businesses are using RPG programming language for their apps. However, the number of experienced RPG programmers has declined over the years. There are several factors that contribute to this shortage of skilled developers:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Aging Workforce: <\/b><span style=\"font-weight: 400;\">The average age of RPG developers is increasing, with many approaching retirement. Some estimates suggest that by 2025, the typical <\/span><b>RPG programmer<\/b><span style=\"font-weight: 400;\"> will be around 70 years old, leading to a significant reduction in the available skilled workforce.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Declining Interest Among New Developers: <\/b><span style=\"font-weight: 400;\">The new generation of developers often focuses on learning modern programming languages, leading to fewer individuals trained in RPG. This trend results in a talent gap as seasoned professionals retire.\u00a0<\/span><\/li>\n<\/ul>\n<p><b>Limited Educational Resources:<\/b><span style=\"font-weight: 400;\"> There are fewer educational programs and training opportunities for RPG compared to more widely used programming languages, making it challenging for new developers to acquire the necessary skills.<\/span><\/p>\n<h2><\/h2>\n<h2><strong>Can integrating the programs with modern technologies be time-consuming?<\/strong><\/h2>\n<p>If you want to use RPG programs, you have to integrate them with the latest tools and technologies. Otherwise, it will be impossible to meet the business demands. However, integrating the RPG programs with modern technologies and tools can be very difficult for developers. It can take a lot of time.<\/p>\n<p>To solve this common issue, you can use modern low-code tools. They enable you to modernize RPG business apps without migration. As a result, they have become massively popular. For example, developers can utilize <a href=\"https:\/\/lansa.com\/products\/visual-lansa\/\">Visual LANSA<\/a> to simplify the modernization of legacy tools. It has the ability to make application development workflow up to ten times faster. Hence, you can quickly modernize your legacy app.<\/p>\n<p><a href=\"\/blog\/application-modernization\/ibm-i-modernization\/why-you-should-modernize-your-rpg-and-cobol-5250-apps\/\">Read: Why You Should Modernize Your RPG and COBOL 5250 Apps<\/a><\/p>\n<h2><\/h2>\n<h2><strong>What is RPG programming language used for?<\/strong><\/h2>\n<p>Developers use RPG language for commercial business application development on IBM\u2019s leading minicomputer system \u2013 the AS400 or iSeries. It provides users with an interactive programming environment. Hence, you can conveniently enhance existing software applications or automate the existing business processes.<\/p>\n<h2><b>RPG Open Access: Expanding Flexibility<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">RPG Open Acess extends the capabilities of traditional <\/span><b>RPG programming language<\/b><span style=\"font-weight: 400;\"> by allowing developers to interact with external resources beyond the IBM i database. With RPG Open Access, programmers can leverage the familiar RPG I\/O model to access devices and resources that are not supported by RPG, enhancing integration with modern technologies.<\/span><\/p>\n<h3><b>How RPG Open Acess Works<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">RPG Open Acess introduces I\/O handlers, which act as intermediaries between RPG programs and external resources. Instead of solely relying on IBM i system files, RPG Open Access allows <\/span><b>RPG programmers<\/b><span style=\"font-weight: 400;\"> to specify custom handlers to handle the I\/O operations. This enables RPG applications to interact with:<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Browsers<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Mobile devices<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Cloud computing resources<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Web services<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">External databases<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">XML files<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Spreadsheets<\/span><\/li>\n<\/ul>\n<p>o create, update, and maintain business applications on IBM computer systems. Developers use it for a variety of purposes. For example, users can utilize RPG to automate business workflow.<\/p>\n<h2><\/h2>\n<h2><strong>How can I connect my RPG programs with modern web and mobile applications with LANSA?<\/strong><\/h2>\n<p>Developers can connect RPG programs with apps by using LANSA integrator. It is based on the Java Service Framework. It enables easy integration between Java programs and RPG applications.<\/p>\n<p><a href=\"https:\/\/lansa.com\/products\/lansa-integrator\/\">LANSA integrator<\/a> supports a wide range of B2B technologies such as FTP, FTPS, SFTP, HTTP, HTTPS, SMTP, POP3, SOAP, and JMS. They eliminate complexities and simplify the integration process. Hence, you can save time and focus more on the business requirements.<\/p>\n<h2><\/h2>\n<h2 class=\"codeblock\"><strong>Can Visual LANSA solve issues with app development in RPG programming language?<\/strong><\/h2>\n<p><a href=\"https:\/\/lansa.com\/products\/visual-lansa\/\">Visual LANSA<\/a> is a low-code development platform available for free. It is feature-rich. It enables you to simplify the development process. You can use Visual Lansa to quickly modernize legacy apps. It gives you access to a low-code method. Hence, you can easily build apps and deploy them to IBM i.<\/p>\n<p>Also, you don\u2019t have to learn RPG programming language to use it. You don\u2019t even need to learn other languages, like Java. You can do everything from defining to deploying app logic with LANSA low-code tools. Also, it has a strong community support. Overall, it offers a great solution for effectively developing and modernizing apps. Therefore, you should definitely consider using <a href=\"https:\/\/lansa.com\/products\/visual-lansa\/\">Visual LANSA<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>RPG programming is the backbone of many businesses, powering critical operations across a wide range of industries. Initially designed as a report-writing tool, it has evolved into a versatile tool for data processing, transaction management, and enterprise solutions. From building ERP systems to managing accounting processes, RPG programming language continues to prove its reliability and [&hellip;]<\/p>\n","protected":false},"author":111,"featured_media":49838,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[66,234],"tags":[342,61],"class_list":["post-49833","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-application-modernization","category-ibm-i-modernization","tag-lansa-integrator","tag-visual-lansa"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.4 (Yoast SEO v27.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>RPG Programming Language: All you Need to Know | LANSA<\/title>\n<meta name=\"description\" content=\"Discover the uses and benefits of the RPG programming language. 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