SELECT FROM(INPUT) TO(ONLYONE) ON(23,3,FS) NODUPS

Sorts the INPUT data set to the ONLYONE data set, selecting only the records from INPUT with floating sign values in positions 23-25 that occur just once (that is, only records with no duplicate ON field values).

The ONLYONE data set might look as follows (several records are shown for illustrative purposes):

DFSRT2    BOENIG        5    DOC.EXAMPLES
DFSRT1    PACKER        8    ICETOOL.SMF.RUNS
USR002    BETTEN       12    DOC.EXAMPLES
SYS003    YAEGER       32    ICETOOL.TEST.CASES
DFSRT2    CORNELL     108    FS.TEST.CASES
.         .           .      .
.         .           .      .
.         .           .      .