Answer / naidu sekhar yandrapu

We can use JCL SORT utility using SYSIN DD * SUM fields =
none, will eliminate duplicate and store in a different dataset.


e.g
//SORTXSUM DD DSN=... Output eliminated by the SUM stm

//SYSIN DD *
SORT FIELDS=(1,3,CH,A)
SUM FIELDS=NONE , XSUM
/*

Answer / ehatesham

//SORTXSUM DD DSN=datasetname,
// DISP=(NEW,CATLG,DELETE),UNIT=SYSDA,
// SPACE=(CYL,(1,4),RLSE),
// DCB=(RECFM=FB,LRECL=80,BLKSIZE=800)
.
.
//SYSIN DD *
SORT FIELDS=(1,3,CH,A)
SUM FIELDS=NONE,XSUM
/*

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