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What is the meaning of data definition name (ddname) and
dataset name (dsname) in the DD statement?
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Answer Posted / guest
Data definition name is the eight character designation
after the // of the DD statement. It matches the internal
name specified in the steps executing program. In COBOL
that's the name specified after the ASSIGN in the SELECT
ASSIGN statement. Dataset name is the operating system (MVS)
name for the file.
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