VSAM Index

1. INTRODUCTION TO VSAM

Features of VSAM

Advantages of VSAM

Types of VSAM Datasets

VSAM history

2. VSAM Catalogs

Vsam catalog

3. Inside VSAM Datasets

Control Interval

Spanned Records

ESDS

KSDS

KSDS Structure

4. IDCAMS COMMANDS

Format of IDCAMS command

IDCAMS return codes

Defining an ESDS Cluster

5. LISTCAT

6. Creating Alternate Indexes

Building Alternate Indexes

7. Reorganizing VSAM datasets

With REPRO you can do the following

Redefine the cluster using IDCAMS DEFINE CLUSTER command

8. VERIFY , PRINT, DELETE, ALTER Command

VERIFY

DELETE

PRINT

ALTER

9. Generation DataSets

Physical deletion of entry

10. COBOL VSAM Considerations