Textbook on computer programming using REXX - includes theoretical exercises. Glossary.

Textbook on computer programming using REXX - includes theoretical exercises. Glossary.

A basic reference for programming in REXX--IBM's SAA procedure language--covering all the language details, concise examples and solid, practical information on how to use REXX. Includes the most important REXX programming idioms, tips, and techniques to show readers how to get the most out of it.

Even as spending on digital transformation continues to skyrocket, mainframes nevertheless have major advantages for global enterprises. These systems still process huge amounts of information and allow for highly secure processing. In this practical book, author Tom Taulli shows software developers how to pursue a hybrid approach by integrating traditional mainframes and applications with modern digital systems. By the end of the book, you'll have a solid understanding of the mainframe architecture and ecosystem, including core concepts and technologies such as COBOL, JCL, DB2, VSAM, and CICS. You'll learn how to blend in newer technologies such as the cloud, AI and machine learning, and the use of microservices. This handbook is indispensable for enterprises looking to thrive in the new digital world. Learn strategies and approaches for mainframe DevOps Update and maintain existing mainframe code, and analyze and resolve common errors Apply modern approaches to the mainframe, including microservices, APIs, cloud, and AI and machine learning Work with datasets and databases and put together effective reports Understand how to work with modern cloud systems, like AWS, for pursuing data migration

ON THE DISK YOU'LL FIND: * Sample programs and data such as Hello World * A calendaring/scheduling package * Utilities to help users rebuild desktop objects, show files with archive bits, and demonstrate usage of special variables * Examples showing O-REXX with OpenDoc and WorkPlace Shell classes Drawing from over 20 years of programming experience, leading OS/2 and LAN specialist Tom Ender covers O-REXX from the ground up. He begins with an overview and tutorial of traditional REXX and the GUI builders that facilitate REXX on OS/2. He then clearly presents the object-oriented concepts of O-REXX and the built-in classes that support implementation. He also discusses the future of O-REXX-particularly O-REXX on the Internet. You'll find * Valuable programming on debugging and WorkPlace Shell * An extensive overview of O-REXX variable types and objects * An actual calendaring and program scheduling application developed in O-REXX * A comprehensive description of native debugging tools * Coverage of OS/2 RexxUtil package as an example of a REXX utility Whether you're an OS/2 developer and programmer, systems or LAN administrator, software developer, systems programmer, or anyone looking to develop a working ability with O-REXX, Object-Oriented Programming with REXX is the right place to start.

&Quot;Whether you're new to Rexx or are an experienced Rexx programmer, this comprehensive reference offers you what you need to know in order to work with this easy yet powerful scripting language on any level. After a quick overview of the basics of Rexx, you'll move on to more advanced scripting topics such as portable code and optimal coding style.". "This book is for programmers on any platform who are either looking to learn Rexx or already use it and want to expand their knowledge of Rexx. A basic knowledge of programming is assumed."--BOOK JACKET.

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