Currently, the PARMFILE for DBXRAIN contains 9 parms.
A new parameter has been added at the 10 position to control behavior of when a copybook should be reused or versioned based on the
Input dataset name. If Parm 10 is provided with a value of 'N' then the input dataset name is not used as a distinguishing factor when attempting to reuse a dataset.
In other words, if the same copybook exists in different datasets and is imported with parm 10 set to N, then the COPYBOOK entity will not be versioned.
If the parm is omitted then DBXRAIN behaves as it normally would which would
result in multiple versions of the copybook if the input dataset name is different.
N ; 10. DO NOT USE INPUT DATASET AS REUSE CRITERIA?