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System Parameter Overrides

System parameters can be overridden through JCL execution. It must have "SYSPARMOy" in SYSPARMS member of PARMLIB.

Use //SYSPARMS DD statement.

Example of a system override

//SYSPARMS DD *
DYNEXPDTE99365
PREALLOCY
/*

Example for step name overrides

//PRINT.SYSPARMS DD *
FLY COUNT0
/*