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Controlling Return Codes of SORT

 
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Kalicharan
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Joined: 08 Feb 2006
Posts: 31
PostPosted: Tue Nov 07, 2006 4:36 pm    Post subject: Controlling Return Codes of SORT Reply with quote
Hi,

Here is my requirement

File-A
1234512345

File-B
1234512344

Only one record (of length 10) is present in both File-A and File-B.

If Record(File-A) > Record(File-B) then SORT should return 4
otherwise 0.

So how to get this using any SORT.

Thanks
Kalicharan.
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Frank Yaeger
Moderator


Joined: 18 Feb 2006
Posts: 487
Location: San Jose, CA
PostPosted: Tue Nov 07, 2006 11:29 pm    Post subject: Reply with quote
Here's a DFSORT/ICETOOL job that will do what you asked for.

Code:

//S1 EXEC PGM=ICETOOL
//TOOLMSG DD SYSOUT=*
//DFSMSG DD SYSOUT=*
//CON DD DSN=...  input file1 (FB/10)
//    DD DSN=...  input file2 (FB/10)
//T1 DD DSN=&&T1,UNIT=SYSDA,SPACE=(TRK,(1,1)),DISP=(,PASS)
//TOOLIN DD *
* Get 1 record if field1>field2 or 0 records if field1<=field2.
SORT FROM(CON) USING(CTL1)
* If we have 1 record (field1>field2), set RC=4.
* If we have 0 records (field1<=field2), set RC=0.
COUNT FROM(T1) NOTEMPTY RC4
/*
//CTL1CNTL DD *
* Add 'A' in position 11 of both records so we can sort on it.
* Add seqnum in position 12 so we can identify record 2.
  INREC IFTHEN=(WHEN=INIT,OVERLAY=(11:C'A',12:SEQNUM,1,ZD)),
* Change 10-byte value in file2 record to a negative value.
        IFTHEN=(WHEN=(12,1,CH,EQ,C'2'),
          OVERLAY=(1:1,10,ZD,MUL,-1,TO=ZD,LENGTH=10))
* Sort on 'A' in 12 so we can use SUM to get field1-field2.
  SORT FIELDS=(11,1,CH,A)
  OPTION EQUALS
* Use SUM to get field1-field2.
  SUM FIELDS=(1,10,ZD)
* If field1>field2, keep record, otherwise omit it.
  OUTFIL FNAMES=T1,INCLUDE=(1,10,ZD,GT,+0)
/*

_________________
Frank Yaeger - DFSORT Development Team (IBM) - yaeger@us.ibm.com
Specialties: JOINKEYS, FINDREP, WHEN=GROUP, ICETOOL, Symbols, Migration
=> DFSORT/MVS is on the Web at http://www.ibm.com/storage/dfsort/
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