D540 Outline

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VSAM For COBOL Programmers - Topical Outline

Day One

Introduction
    VSAM Space Concepts
    CI's and CA's
    ESDS, KSDS, RRDS, LSDS
    RBA's
    JCL for VSAM data sets
    Catalog Hierarchy

Entry Sequenced Data Sets (ESDS) and Access Method Services (AMS)
    ESDS Characteristics
    Introduction to AMS
    DEFINE CLUSTER, REPRO, PRINT, DELETE commands
    Computer Exercise: ESDS and AMS

Job Alternatives
Single versus multiple steps and jobs
JES2 vs JES3

Key Sequenced Data Sets (KSDS)
    Creating KSDSs - Overview
    KSDS Terms and Concepts
    Free Space
    CI splits and CA splits
    DEFINE CLUSTER for KSDS
    LISTCAT Command
    Computer Exercise: KSDS and AMS

VSAM and COBOL: An Introduction
    Defining VSAM files in a COBOL program
    File status items for VSAM files
    OPENing and CLOSEing VSAM files
    File Position Indicator
    File status processing concerns

COBOL and ESDS
File Processing

Day Two

COBOL and KSDS
File Processing
Computer Exercise: Processing a KSDS Randomly

Alternate Indexes
    AIX Concepts
    DEFINE AIX, BLDINDEX, DEFINE PATH Commands
    Computer Exercise: AIX and AMS

Using Alternate Indexes in COBOL

Relative Record Data Sets (RRDS)
    RRDS Concepts
    Randomizing Algorithms
    DEFINE CLUSTER for RRDS

COBOL and RRDS
    File Processing
    Variable Length Record RRDS Support
    Computer Exercise: Random Processing of an RRDS

Course Objectives
Course description
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