Ibm Mainframes: Comprehensive Guide To Jcl, Cobol, Db2, Cics

Explore the world of Mainframe Systems: From Architecture and JCL to COBOL, Database Management, Transaction Processing.

What you'll learn

Understand the fundamental architecture, operating systems, and ecosystem of mainframes.

Write, execute, and debug Job Control Language (JCL) scripts for batch processing.

Develop COBOL programs for various business applications, including file handling and modular programming.

Design and manage Virtual Storage Access Method (VSAM) datasets for efficient data storage and retrieval.

Use DB2 databases to write SQL queries, manage transactions, and integrate with COBOL programs.

Build and manage Customer Information Control System (CICS) applications for transaction processing.

Troubleshoot and resolve common errors in JCL, COBOL, DB2, and CICS.

Optimize mainframe applications for performance and reliability across different components.

Integrate mainframe components such as COBOL, VSAM, DB2, and CICS into seamless workflows.

Utilize mainframe tools like IDCAMS and debugging utilities for effective system management.

Execute real-world projects that demonstrate proficiency in key mainframe technologies.

Apply mainframe skills to industries like banking, insurance, and retail for large-scale transaction processing.

Requirements

Enthusiasm and determination to make your mark on the world!

Description

A warm welcome to the IBM Mainframes: Comprehensive Guide to JCL, COBOL, DB2, CICS course by Uplatz.An IBM Mainframe is a high-performance, highly reliable computer system designed for large-scale enterprise computing. It is renowned for its ability to handle vast amounts of data, support critical business applications, and ensure secure, high-speed transactions. Mainframes are widely used in industries like banking, insurance, retail, and government due to their robustness, scalability, and exceptional uptime.IBM Mainframes are the backbone of critical enterprise computing, delivering unmatched reliability, security, and performance for data-intensive industries.Core Components of IBM MainframesProcessor (Central Processing Unit - CPU)High-speed processors specifically designed for parallel and vector processing.Support for simultaneous multithreading and large-scale virtualization.MemoryLarge-capacity RAM for fast data access and caching.Supports virtual memory for efficient resource utilization.Storage SystemsHierarchical storage systems with high-capacity disks.RAID (Redundant Array of Independent Disks) for data redundancy and reliability.I/O SubsystemsAdvanced Input/Output channels for high-speed data transfer.Dedicated hardware for handling large volumes of simultaneous I/O requests.Operating SystemIBM z/OS: A powerful, multi-tasking OS designed for mainframes.Other supported OS include Linux on IBM Z, z/VM, and z/VSE.Network CommunicationHigh-speed networking capabilities to integrate with modern systems.Support for secure communication protocols like TCP/IP and SNA.Middleware and Transaction ProcessorsSoftware like CICS (Customer Information Control System) and IMS (Information Management System) for efficient transaction and database management.Security SubsystemsHardware and software-level encryption for secure data storage and communication.Tools like RACF (Resource Access Control Facility) for user and resource management.Database SystemsDB2 for data management and high-performance transaction processing.Development ToolsTools for application development, debugging, and integration (e.g., COBOL, PL/I, Assembler).Key Features of IBM MainframesScalabilitySeamlessly handle increased workloads by adding resources or users.High Availability and Reliability99.999% uptime, ensuring uninterrupted operations.Advanced VirtualizationRun thousands of virtual servers simultaneously on a single system.SecurityIndustry-leading encryption and access control for sensitive data.PerformanceHigh-speed processing with support for millions of transactions per second.CompatibilitySupport for backward compatibility, enabling legacy applications to run without modification.Energy EfficiencyEfficient use of power relative to workload, reducing operational costs.Disaster Recovery and ResiliencyRobust backup and recovery mechanisms for business continuity.What is IBM Mainframe Used For?Financial ServicesProcessing millions of banking transactions, credit card authorizations, and securities trades daily.RetailManaging inventory, online transactions, and customer loyalty programs.HealthcareStoring and processing large-scale patient data securely.Government and DefenseHandling sensitive data and critical infrastructure systems.TelecommunicationsManaging billing systems and customer data for millions of users.Transportation and LogisticsScheduling, route optimization, and real-time tracking.Data Warehousing and AnalyticsLarge-scale data analysis for insights and decision-making.ERP and CRM SystemsSupporting enterprise resource planning and customer relationship management platforms.IBM Mainframes: Comprehensive Guide to JCL, COBOL, DB2, CICS - Course CurriculumModule 1: Introduction to Mainframes1.1 Overview of Mainframe TechnologyDefinition and characteristics of mainframesHistory and evolution of mainframe systemsComparison with distributed systems1.2 Mainframe ArchitectureComponents of mainframe architecture (CPU, memory, storage, I/O)System z architecture and its features1.3 Mainframe Operating SystemsIntroduction to z/OSBatch and online processingSecurity and performance features1.4 Mainframe EcosystemMainframe software and tools overviewKey vendors and their offerings (IBM, CA Technologies, etc.)Module 2: Job Control Language (JCL)2.1 Introduction to JCLPurpose and importance of JCL in mainframe operationsBasic syntax and structure of JCL2.2 JCL Statements and ParametersJOB, EXEC, DD, and other JCL statementsUnderstanding parameters and their usage2.3 Creating and Submitting JobsWriting sample JCL scriptsSubmitting jobs and monitoring job status2.4 Error Handling and DebuggingCommon JCL errors and troubleshooting techniquesUsing return codes and messages for debuggingModule 3: COBOL Programming3.1 Introduction to COBOLHistory and relevance of COBOL in mainframesOverview of COBOL programming language features3.2 COBOL Program StructureDivision structure (Identification, Environment, Data, Procedure)Working with data types and variables3.3 File Handling in COBOLSequential and indexed file processingReading from and writing to files3.4 Advanced COBOL ConceptsDebugging and error handlingUsing subprograms and modular programmingIntegration with JCL for job submissionModule 4: Virtual Storage Access Method (VSAM)4.1 Introduction to VSAMOverview of VSAM and its importance in mainframesTypes of VSAM files (Key-Sequenced, Entry-Sequenced, Relative)4.2 Creating and Managing VSAM DatasetsDefining VSAM datasets and their attributesUsing IDCAMS for VSAM dataset management4.3 VSAM File OperationsReading, writing, and updating VSAM files using COBOLHandling file organization and record formats4.4 Performance OptimizationVSAM indexing and performance tuningBest practices for VSAM file managementModule 5: DB2 Database5.1 Introduction to DB2Overview of DB2 and its role in mainframe environmentsDifferences between DB2 and other database systems5.2 DB2 ArchitectureComponents of DB2 architecture (DBMS, buffer manager, SQL processor)Understanding data storage and retrieval in DB25.3 SQL Programming with DB2Writing SQL queries for data manipulation and retrievalHandling transactions and concurrency control5.4 Integrating DB2 with COBOLAccessing DB2 databases using COBOL programsError handling and debugging SQL in COBOLModule 6: Customer Information Control System (CICS)6.1 Introduction to CICSOverview of CICS and its importance in transaction processingCICS architecture and components6.2 CICS ProgrammingDeveloping CICS applications using COBOLCICS commands and their usage6.3 CICS Transaction ManagementManaging transactions and resources in CICSError handling and debugging in CICS applications6.4 CICS Integration and PerformanceIntegrating CICS with DB2 and other systemsPerformance tuning and best practices for CICS applicationsModule 7: Capstone Project7.1 Practical ApplicationDeveloping a comprehensive project utilizing JCL, COBOL, VSAM, DB2, and CICSReal-world scenarios and case studies7.2 Presentation and ReviewPresenting project outcomes and findingsPeer review and feedback session

Overview

Section 1: Introduction to IBM Mainframes and JCL

Lecture 1 Introduction to IBM Mainframes and JCL

Section 2: JCL Utilities and Abends Code

Lecture 2 Intro - JCL Utilities and Abends Code

Lecture 3 JCL Utilities and Abends Code

Section 3: JCL Syntax and Code Sheet

Lecture 4 Intro - JCL Syntax and Code Sheet

Lecture 5 JCL Syntax and Code Sheet

Section 4: JCL Symbolic Parameter and Sorting and Merging

Lecture 6 Intro - JCL Symbolic Parameter and Sorting and Merging

Lecture 7 JCL Symbolic Parameter and Sorting and Merging

Section 5: JCL GDG and Practical Example of JCL Code

Lecture 8 Intro - JCL GDG and Practical Example of JCL Code

Lecture 9 JCL GDG and Practical Example of JCL Code

Section 6: Introduction to COBOL and Division

Lecture 10 Intro - Introduction to COBOL and Division

Lecture 11 Introduction to COBOL and Division

Section 7: COBOL Division and Data Structure with Sample Program

Lecture 12 Intro - COBOL Division and Data Structure with Sample Program

Lecture 13 COBOL Division and Data Structure with Sample Program

Section 8: COBOL Program Design Conditions and Algorithms

Lecture 14 COBOL Program Design Conditions and Algorithms

Section 9: COBOL Perform Statement Inspect Array and its Example

Lecture 15 Intro - COBOL Perform Statement Inspect Array and its Example

Lecture 16 COBOL Perform Statement Inspect Array and its Example

Section 10: COBOL String Unstring and File Handling with Example

Lecture 17 Intro - COBOL String Unstring and File Handling with Example

Lecture 18 COBOL String Unstring and File Handling with Example

Section 11: Processing Sequential Files Sorting with Example

Lecture 19 Intro - Processing Sequential Files Sorting with Example

Lecture 20 Processing Sequential Files Sorting with Example

Section 12: COBOL VSAM File Processing

Lecture 21 Intro - COBOL VSAM File Processing

Lecture 22 COBOL VSAM File Processing

Section 13: COBOL Call Verb Copy Statement and Debugging

Lecture 23 COBOL Call Verb Copy Statement and Debugging

Section 14: Introduction to CICS and its Components

Lecture 24 Introduction to CICS and its Components

Section 15: CICS - BMS - Physical and Symbolic Map

Lecture 25 CICS - BMS - Physical and Symbolic Map

Section 16: CICS - BMS - Micro DFHMDI DGHMDF

Lecture 26 CICS - BMS - Micro DFHMDI DGHMDF

Section 17: CICS - BMS - Micro DFHMSD

Lecture 27 CICS - BMS - Micro DFHMSD

Section 18: CICS - BMS - Coding Standards

Lecture 28 CICS - BMS - Coding Standards

Section 19: CICS - Terminal Control Operation - Send and Receive Map

Lecture 29 CICS - Terminal Control Operation - Send and Receive Map

Section 20: CICS - Interval and Program Control Operation - Return and Link

Lecture 30 CICS - Interval and Program Control Operation - Return and Link

Section 21: CICS - Interval and Program Control Operation - XCTL and Calls

Lecture 31 CICS - Interval and Program Control Operation - XCTL and Calls

Section 22: CICS - File Operations - Read and Unlock

Lecture 32 CICS - File Operations - Read and Unlock

Section 23: CICS - File Operations - Write and Rewrite

Lecture 33 CICS - File Operations - Write and Rewrite

Section 24: CICS - File Control Operations for Sequential File

Lecture 34 CICS - File Control Operations for Sequential File

Section 25: CICS - File Control Operations - TSQ and TDQ

Lecture 35 CICS - File Control Operations - TSQ and TDQ

Section 26: CICS - TSQ and TDQ - Read and Write and other Transactions

Lecture 36 CICS - TSQ and TDQ - Read and Write and other Transactions

Section 27: IBM Standard Transaction and Abend Codes

Lecture 37 IBM Standard Transaction and Abend Codes

Section 28: Introduction to IBM Mainframe Databases - DB2

Lecture 38 Introduction to IBM Mainframe Databases - DB2

Section 29: DB2 Conditions Rules and SQL

Lecture 39 DB2 Conditions Rules and SQL

Section 30: DB2 Operations with SQL and its Functions

Lecture 40 DB2 Operations with SQL and its Functions

Section 31: DB2 - Dynamic and Static SQL and DCLGEN with COBOL

Lecture 41 DB2 - Dynamic and Static SQL and DCLGEN with COBOL

Section 32: DB2 - DCL GEN and Cursor

Lecture 42 DB2 - DCL GEN and Cursor

Section 33: DB2 - Subqueries and Complex SQL Joins

Lecture 43 DB2 - Subqueries and Complex SQL Joins

Section 34: DB2 - Use of QMF and SPUFI in Mainframe

Lecture 44 DB2 - Use of QMF and SPUFI in Mainframe

Section 35: DB2 Utilities

Lecture 45 DB2 Utilities

IT graduates and beginners starting a career in mainframe systems.,Developers and programmers specializing in JCL, COBOL, DB2, and CICS.,System administrators managing mainframe operations and performance.,Database administrators working with DB2 in large-scale environments.,IT professionals transitioning from distributed systems to mainframes.,Mainframe testers and QA analysts ensuring application quality.,Technology consultants working on mainframe modernization projects.,Business analysts focused on mainframe-based business processes.,IT operations professionals handling batch and online processing.,Students pursuing computer science or IT-related degrees.,IT professionals interested in legacy system maintenance and enhancement.,Enterprise architects designing systems that integrate mainframes.,Data engineers and analysts working with mainframe data.,Support engineers resolving mainframe application issues.,Project managers overseeing mainframe-related projects.,Professionals in banking, insurance, or retail sectors relying on mainframes.,Mainframe enthusiasts seeking hands-on experience with core technologies.,Trainers and educators teaching mainframe concepts and applications.,Professionals preparing for mainframe certifications or interviews.,Organizations transitioning from manual processes to automated mainframe solutions.