24 Oct
2019
24 Oct
'19
2:25 p.m.
MVS(Z/OS).DD statement means Data definition,
//DD-name DD Parameters
whereas DD-NAME identifies the dataset (=file). The real file is referenced by this name
within the program. Say DD hello then the program source says: open hello; read hello, and
so on.
Thus MVS(Z/OS).DD having nothing todo withUNIX.DD.