Rational Developer for System z
Enterprise COBOL for z/OS, Version 4.1, Programming Guide


Defining VSAM files

You can process VSAM entry-sequenced, key-sequenced, and relative-record data sets in Enterprise COBOL only after you define them through access method services (IDCAMS).

A VSAM cluster is a logical definition for a VSAM data set and has one or two components:

Use the DEFINE CLUSTER access-method services command to define VSAM data sets (clusters). This process includes creating an entry in an integrated catalog without any data transfer. Define the following information about the cluster:

Depending on what kind of data set is in the cluster, also define the following information for each cluster:


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