Example 4 SORTIN01-03 DD statements (merge)
//SORTIN01 DD DSNAME=MERGE1,VOLUME=SER=000111,DISP=OLD,
// LABEL=(,NL),UNIT=3590,
// DCB=(RECFM=FB,LRECL=80,BLKSIZE=32000)
//SORTIN02 DD DSNAME=MERGE2,VOLUME=SER=000121,DISP=OLD,
// LABEL=(,NL),UNIT=3590,
// DCB=(RECFM=FB,LRECL=80,BLKSIZE=32000)
//SORTIN03 DD DSNAME=MERGE3,VOLUME=SER=000131,DISP=OLD,
// LABEL=(,NL),UNIT=3590,
// DCB=(RECFM=FB,LRECL=80,BLKSIZE=32000)