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所在平台: Udemy |
课程主页: https://www.udemy.com/course/jclonevenkatsince/
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课程名称：JCL - 作业控制语言 [大主机] 课程概述： 本课程旨在帮助学习者掌握作业控制语言（JCL），了解其在大主机环境中的重要性以及如何提交和管理作业。课程内容涵盖了JCL的各个方面，包括： 1. **JCL简介**：了解JCL是什么及其在大主机环境中的重要作用。 2. **JCL语句**：概述不同JCL语句及其结构，学习如何控制作业执行流程。 3. **JOB语句**：详细解释JOB语句及其主要参数，了解如何向操作系统定义作业。 4. **EXEC语句**：学习如何使用EXEC语句执行程序，了解其语法和常见参数。 5. **DD语句**：探讨数据定义（DD）语句的使用，学习如何分配文件并传递数据给程序。 6. **编写JCL程序与错误修正**：逐步指导如何编写完整的JCL程序，理解调试和修复常见JCL错误的方法。 7. **JCL实用工具**：介绍常用的JCL实用工具，了解如何执行文件操作（如复制、删除等）。 8. **IEFBR14、IEBGENER、IEBCOPY实用工具**：演示如何使用系统实用工具，学习它们的实时用例。 9. **SORT / DFSORT实用工具（基础到高级）**：学习如何使用DFSORT进行数据排序和操作，从基础排序到高级特性。 10. **ICETOOL实用工具（基础到高级）**：理解ICETOOL强大的数据处理能力，通过实际演示学习基本到复杂的任务。 11. **JCL过程 - 内嵌与目录化**：学习如何使用过程重用JCL代码，了解内嵌和目录化过程的区别。 12. **过程参数 - 符号和覆盖**：探讨在过程内使用的符号和覆盖参数，学习如何动态定制过程。 13. **JCL中的COND参数**：详细解释如何使用COND参数控制作业步骤执行，并包含实际示例。 14. **COND参数的面试问题**：讨论与COND参数相关的常见面试问题，学习如何自信地回答。 15. **JCL错误处理**：了解识别和解决JCL错误的技巧，理解返回码、ABEND和调试提示。 16. **位置参数与关键字参数**：理解位置参数和关键字参数的区别，学习何时正确使用每种参数。 17. **世代数据组（GDG）**：学习如何定义和使用GDG管理顺序文件，包含创建和访问世代的演示。 18. **GDG面试问题**：回顾常见的GDG面试问题，从求职面试的角度理解概念。 19. **JCL面试问题**：通过常见的JCL面试问题和答案进行复习，助于求职准备。 20. **JCL主题的实践练习**：通过动手练习应用所学知识，通过真实示例巩固关键概念。 本课程为希望在大主机环境中学习并掌握JCL的学习者提供了全面的训练和实用的知识。
Course Topics with DescriptionsIntroduction to JCLLearn what JCL (Job Control Language) is and why it's essential in mainframe environments. Understand its role in submitting and managing jobs.JCL StatementsOverview of different JCL statements and their structure. Learn how they control job execution flow.JOB StatementDetailed explanation of the JOB statement and its key parameters. Understand how it defines a job to the operating system.EXEC StatementLearn how to execute programs using the EXEC statement. Understand its syntax and common parameters.DD StatementExplore the Data Definition (DD) statement used to define datasets. Learn how to allocate files and pass data to programs.Writing JCL Programs and Fixing ErrorsStep-by-step guidance on writing complete JCL programs. Understand how to debug and fix common JCL errors.JCL UtilitiesIntroduction to commonly used JCL utilities. Understand how to perform file operations like copy, delete, and more.IEFBR14, IEBGENER, IEBCOPY UtilitiesDemos on how to use system utilities like IEFBR14, IEBGENER, and IEBCOPY. Learn their real-time use cases.SORT / DFSORT Utility (Basic to Advanced)Learn to sort and manipulate data using DFSORT. Start from basic sorting and move to advanced features.ICETOOL Utility (Basic to Advanced)Understand ICETOOL's powerful data processing capabilities. Learn with practical demos from basic to complex tasks.JCL Procedures - Instream and CatalogedLearn how to reuse JCL code using procedures. Understand the difference between instream and cataloged procedures.Procedure Parameters - Symbolic and OverrideExplore symbolic and override parameters used within procedures. Learn how to customize procedures dynamically.COND Parameter in JCLDetailed explanation of how to use the COND parameter to control job step execution. Includes practical examples.Interview Questions on COND ParameterDiscuss common interview questions related to the COND parameter. Learn how to answer them confidently.JCL Error HandlingLearn techniques for identifying and resolving JCL errors. Understand return codes, ABENDs, and debugging tips.Positional vs Keyword ParametersUnderstand the difference between positional and keyword parameters. Learn how and when to use each correctly.Generation Data Groups (GDG)Learn how to define and use GDGs for managing sequential files. Includes demo on creating and accessing generations.GDG Interview QuestionsReview frequently asked GDG interview questions. Understand concepts from a job interview perspective.JCL Interview QuestionsGo through a collection of common JCL interview questions and answers. Great for job preparation and revision.Practical Exercises on JCL TopicsApply what you've learned through hands-on exercises. Reinforce key concepts with real-world examples.
