Answer / guest

Generation Data Group is a group of chronologically or
functionally related datasets. GDGs are processed
periodically, often by adding a new generation, retaining
previous generations, and sometimes discarding the oldest
generation.

Answer / maveric

GDG is group of datasets that are related to each other functionally.
For Example:-
Processing Payroll, Invoicing regular customers, Income Tax report

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describe the dd statement,its meaning,syntax and keywords?

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