Displays unique count of field (UNIQUE Operator)

UNIQUE operator displays the unique values count for a specified numeric or character field.

Syntax -

Required Operands

• FROM - specifies ddname of the input file. It is mandatory when FROM operand is coded.
• ON (p,l,f) - specifies the field(s) used for validation.
  • p - gives the starting position of field.
  • l - gives the length of the field. The field should not be beyond position 32752 or the end of the record.
  • f - gives the format of the data. The valid formats are PD(Signed Packed decimal - 1 to 16 bytes) and ZD (Signed Zoned decimal - 1 to 31 bytes).

Optional Operands

• VSAMTYPE - specifies the record format for a VSAM input file. It should be either F (fixed-length) or V (variable-length) record processing.
• UZERO - Causes -0 to be treated as unsigned, that is, as 0.

Example -

Scenario - Displays the unique values count for country field (2 columns length from 60th column).

INPUT1 - MATEPK.INPUT.PSFILE

----+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
001  PAWAN         MAINFRAME           JPM       AP        IN
002  SRINIVAS      TESTING             ORACLE    TG        IN
003  SRIDHAR       SAS                 CG        OR        US
004  VENKATESH     ABAP                CSC       CA        IN
005  RAVI          HADOOP              CTS       FL        US
006  PRASAD        HR                  INFOSYS   MI        US
007  RAJA          TESTING             IBM       CA        US

JCL -

----+----1----+----2----+----3----+----4----+----5----+
...
//STEP01   EXEC PGM=ICETOOL
//INDD     DD DSN=MATEPK.INPUT.PSFILE,DISP=SHR
//TOOLIN   DD *
  UNIQUE FROM(INDD) ON(60,2,CH)
/*
...

TOOLMSG (SDSF SPOOL) - Verify TOOLMSG for the return code of the submitted job.