Page TitleJCL statements: What does the DD statement do?
DescriptionData definition (DD) statements define the data sets that a program or procedure uses when it runs. You must code one DD statement for each data set that is used or created within a job step.
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Linked FromDD - Data Definition 
Suggested2/11/2009 6:35:00 PM
Updated2/11/2009 6:35:00 PM