SUBSET Operator

Copies subset of the records (SUBSET Operator) Example

SUBSET Operator Tutorial   

Scenario -Copy only data records (exclude header and footer).

INPUT - MATEPK.INPUT.PSFILE1

----+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
ENO  NAME          TECHNOLOGY          COMPANY   STATE     COUNTRY
========================================================================
001  PAWAN         MAINFRAME           JPM       AP        IN
002  SRINIVAS      TESTING             ORACLE    TG        IN
003  SRIDHAR       SAS                 CG        OR        US
004  VENKATESH     ABAP                CSC       CA        US
005  RAVI          HADOOP              CTS       FL        US
006  PRASAD        HR                  INFOSYS   MI        US
007  RAJA          TESTING             IBM       CA        US
========================================================================
TOTAL NUMBER OF RECORDS: 007

JCL -

----+----1----+----2----+----3----+----4----+----5----+
//MATEPKSS JOB (123),'MATEPK',CLASS=A,MSGCLASS=A,
//             MSGLEVEL=(1,1),NOTIFY=&SYSUID
//*
//STEP01   EXEC PGM=ICETOOL
//INDD     DD DSN=MATEPK.INPUT.PSFILE1,DISP=SHR
//OUTDD    DD DSN=MATEPK.OUTPUT.PSFILESS,
//            DISP=(NEW,CATLG,DELETE),VOLUME=SER=DEVHD4,
//            SPACE=(TRK,(1,1),RLSE),UNIT=SYSDA,
//            DCB=(DSORG=PS,RECFM=FB,LRECL=80,BLKSIZE=800)
//TOOLIN   DD *
  SUBSET FROM(INDD) TO(OUTDD) REMOVE OUTPUT HEADER(2) TRAILER(2)
/*
//TOOLMSG  DD SYSOUT=*
//DFSMSG   DD SYSOUT=*
//

OUTPUT - MATEPK.OUTPUT.PSFILESS

----+----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        US
005  RAVI          HADOOP              CTS       FL        US
006  PRASAD        HR                  INFOSYS   MI        US
007  RAJA          TESTING             IBM       CA        US

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

SUBSET TOOLMSG

Explaining Example -

  • INDD - Specifies the ddname for input file.
  • OUTDD - Specifies the ddname for output 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.
  • SUBSET FROM(INDD) TO(OUTDD) REMOVE OUTPUT HEADER(2) TRAILER(2)- Selects the subset of the records from the input which ignores first 2 records and last 2 records.