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