For a copy application, the SORTIN data set should not be the
same as the SORTOUT data set or any OUTFIL data set because this can
cause lost or incorrect data or unpredictable results.
For a sort application, the SORTIN data set should not be the
same as any SORTWKdd data set because this can cause lost or incorrect
data or unpredictable results. The SORTIN data set can be the same
as the SORTOUT data set or an OUTFIL data set, but this situation
can lead to the loss of the data set if the sort application does
not end successfully.
FREE=CLOSE cannot be specified. User labels are not copied.