A statement about PROCs is "
In PROCs, Symbolic Parameters can be assigned on PROC and
EXEC", BUT On which EXEC,
(i) On the JCL's EXEC which is calling to PROC1.
(Inside JCL, EXEC PROC1)
(ii) or On the PROC's EXEC where it calls the PGM1.
(Inside PROC, EXEC PGM=PGM1)
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