Describe the DD statement, its meaning, syntax and keywords?

Answer Posted / guest

The DD statement links the external dataset name (DSN) to
the DDNAME coded within the executing program. It links the
file names within the program code to the file names know to
the MVS operating system. The syntax is // ddname DD
DSN=dataset name. Other keywords after DSN are DISP, DCB,
SPACE, etc.

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