JCL 8 - Generation Data Group ( GDG )

Generation Data Group: It is a collection of multiple sequential data sets with same attributes with unique dataset names.

Attributes like record length, record format, dataset type and Block size.

TSO.TST.ACCT.MONTH
Steps to create a GDG:

There are mainly 3 steps:

1. Creating a GDG Base
2. Adding datasets to base i.e adding generations to base.
3. Accessing generations i.e accessing datasets.

 For more details please click on below video.

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