UNIQUE Operator
UNIQUE Operator (for Beginners)
Summary
For extensive information, go through the UNIQUE Operator for Experienced
UNIQUE operator prints a message with the unique values count for a specified numeric or character field.
Syntax -

Required Operands
- FROM - FROM parameter specifies ddname of the input file.
- ON - ON operator specifies the field(s) used for DISPLAY operation.
Optional Operands
- VSAMTYPE - VSAMTYPE operand specifies the record format for a VSAM input file (F or V).
- UZERO - Causes -0 to be treated as unsigned, that is, as 0.
Example -
Scenario - Print unique values count of a specific field.
In the below example, we are printing the unique values count for country field (2 columns length from 60th column).
INPUT1 - MATEPK.INPUT.PSFILE
BROWSE MATEPK.INPUT.PSFILE Line 00000000 Col 001 080
Command ===> Scroll ===> CSR
----+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
********************************* Top of Data **********************************
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
******************************** Bottom of Data ********************************
JCL -
----+----1----+----2----+----3----+----4----+----5----+----6----+----7--
***************************** Top of Data ******************************
//MATEPKSP JOB (123),'MATEPK',CLASS=A,MSGCLASS=A,MSGLEVEL=(1,1),
// NOTIFY=&SYSUID
//*
//STEP01 EXEC PGM=ICETOOL
//INDD DD DSN=MATEPK.INPUT.PSFILE,DISP=SHR
//TOOLIN DD *
UNIQUE FROM(INDD) ON(60,2,CH)
/*
//TOOLMSG DD SYSOUT=*
//DFSMSG DD SYSOUT=*
//
**************************** Bottom of Data ****************************
TOOLMSG (SDSF SPOOL) - Verify TOOLMSG for the return code of the submitted job.
----+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9
********************************* TOP OF DATA ********************************************
1ICE600I 0 DFSORT ICETOOL UTILITY RUN STARTED
ICE650I 0 VISIT http://www.ibm.com/storage/dfsort FOR ICETOOL PAPERS, EXAMPLES AND MORE
ICE632I 0 SOURCE FOR ICETOOL STATEMENTS: TOOLIN
ICE630I 0 MODE IN EFFECT: STOP
UNIQUE FROM(INDD) ON(60,2,CH)
ICE627I 0 DFSORT CALL 0001 FOR SORT FROM INDD TO E35 EXIT COMPLETED
ICE628I 0 RECORD COUNT: 000000000000007
ICE610I 0 NUMBER OF UNIQUE VALUES FOR (60,2,CH) : 000000000000002
ICE602I 0 OPERATION RETURN CODE: 00
ICE601I 0 DFSORT ICETOOL UTILITY RUN ENDED - RETURN CODE: 00
******************************** BOTTOM OF DATA ******************************************
Explaining Solution -
- INDD - Specifies the ddname for input file.
- TOOLIN DD * - Specifies the ICETOOL statements for DFSORT.
- TOOLMSG - Specifies where to write the ICETOOL processing messages.
- DFSMSG - Specifies where to write the DFSORT processing messages.
- UNIQUE FROM(INDD) ON(60,2,CH) - Prints the number of unique value counts in TOOLMSG based on the selection criteria field from the 60th position of length 2.