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Artículo: AMZ-B0FYRK5DZW
MASTERING REXX PROGRAMMING: THE COMPLETE LANGUAGE GUIDE: ADVANCED REXX DEVELOPMENT FOR IBM MAINFRAMES. DATA STRUCTURES, FUNCTIONS, ERROR HANDLING, AND ENTERPRISE APPLICATION PATTERNS
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Sobre este producto
- Build reliable REXX solutions on z/OS that stand up in production.Engineers need REXX that works across TSO, ISPF, batch, and USS, with clear diagnostics and predictable data handling. Debugging midnight failures, decoding SDSF output, and moving cleanly between Db2, CICS, and JCL are daily realities.This guide shows exactly how to design, code, and ship REXX that your operations team can trust. It favors working patterns, precise error handling, and data structures that scale from a single utility to a shop wide toolset.Execution models on z OS, when to use TSO, ISPF, batch with IRXJCL or IKJEFT01, and USS with bpxwunixStems and compound variables as associative maps, ordered lists and tables with stable tails, sparse matrices with compound keys, and safe use of the external data stack with NEWSTACK and DELSTACKParsing strategies with PARSE templates for fixed width and delimited records, tokenization with helpful errors, and text templating using stemsString toolbox in practice, SUBSTR, POS, DELSTR, OVERLAY, case handling, sorting and aggregation with deterministic orderingNumeric control with DIGITS, FORM, FUZZ, and performance hints that keep arithmetic accurate without slowing jobsProduction grade error handling, CALL ON and SIGNAL ON, RC, ERRORTEXT, SOURCELINE, targeted TRACE usage, OUTTRAP and MSG based loggingISPF dialog engineering, panels and messages, shared pools with VPUT and VGET, edit macros with safe save and rollback, library management via LMINIT, LMOPEN, LMMLIST, and reliable CCSID conversion with TRANSBatch and deployment patterns, SYSEXEC and SYSPROC with ALTLIB, JCL generation and SUBMIT flows, internal reader usage, and job trackingSDSF automation with ADDRESS SDSF and ISFEXEC, mapping panels to stems, monitoring by owner and class, reacting to status and messages, and harvesting SYSLOG and SYSOUT with retention patternsDb2 access with DSNREXX, RXSUBCOM attach, dynamic SQL and cursors, retry control, LOB handling with chunked fetch and write, and stored procedure rules that work in practiceCICS integration, setup and security basics for REXX in CICS, issuing EXEC CICS commands, and scripted CEMT checks for resource inventoryUSS and networking, shell execution with stdin and stdout mapping, file and directory work using syscalls, TCP client and server patterns, and code page conversion with iconv and ISPF TRANSSecurity and operations, RACF queries with IRRXUTIL and callable services, auditing and observability with log capture and SMF hooks, performance profiles for EXECIO, stems, and compiled REXX, and upgrade guards for z OS release changesThis is a code heavy guide with working snippets and complete patterns that you can lift into real projects, from small utilities to shop wide automation.Get the field tested reference that helps you ship dependable REXX on z OS, grab your copy today.
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