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Match and Eliminate records from files having Duplicates

 
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Bee_bop
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Joined: 12 Dec 2005
Posts: 29
Topics: 15
Location: Singapore
PostPosted: Wed Jan 20, 2010 10:58 pm    Post subject: Reply with quote
Hi Gurus,

What if the requirement is to compare both files and create an output that exist only in the first file and duplicates are included ?

File A:

AAAAAAA
BBBBBBB
BBBBBBB
BBBBBBB
CCCCCC
DDDDDD

File B:

AAAAAAA
CCCCCC

Output is :

BBBBBBB
BBBBBBB
BBBBBBB
DDDDDD

Thanks in advance.
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kolusu
Site Admin
Site Admin


Joined: 26 Nov 2002
Posts: 12378
Topics: 75
Location: San Jose
PostPosted: Thu Jan 21, 2010 12:09 pm    Post subject: Reply with quote
Bee_bop,

I assumed that both files are FB files with lrecl of 80. The following DFSORT JCL will give you the desired results. Concatenate a line HDR record before each file which we will use as indicator and using WHEN=GROUP we eliminate the matching records.

Code:

//STEP0100 EXEC PGM=SORT                                           
//SYSOUT   DD SYSOUT=*                                             
//SORTIN   DD *                                                     
HDR                                                                 
//         DD *                                                     
AAAAAAA                                                             
CCCCCC                                                             
//         DD *                                                     
HDR                                                                 
//         DD *                                                     
AAAAAAA                                                             
BBBBBBB                                                             
BBBBBBB                                                             
BBBBBBB                                                             
CCCCCC                                                             
DDDDDD                                                             
//SORTOUT  DD SYSOUT=*                                             
//SYSIN    DD *                                                     
  INREC IFTHEN=(WHEN=GROUP,BEGIN=(1,3,CH,EQ,C'HDR'),PUSH=(81:ID=1))
  SORT FIELDS=(1,7,CH,A),EQUALS                                     
  OUTREC IFTHEN=(WHEN=INIT,OVERLAY=(83:SEQNUM,8,ZD,RESTART=(1,7))),
  IFTHEN=(WHEN=GROUP,BEGIN=(83,8,ZD,EQ,1),PUSH=(82:81,1))           
  OUTFIL INCLUDE=(81,2,ZD,EQ,22),BUILD=(1,80)                       
//*

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Kolusu
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ping
Beginner


Joined: 16 May 2006
Posts: 1
Topics: 0
PostPosted: Mon Jan 25, 2010 7:54 am    Post subject: Reply with quote
Hi,
and with the new DFSORT function :

Code:

//STEP0100 EXEC PGM=SORT           
//SYSOUT   DD SYSOUT=*             
//SORTJNF1 DD *                   
AAAAAAA                           
CCCCCCC                           
//SORTJNF2 DD *                   
AAAAAAA                           
BBBBBBB                           
BBBBBBB                           
BBBBBBB                           
CCCCCCC                           
DDDDDDD                           
//SORTOUT  DD SYSOUT=*             
//SYSIN    DD *                   
  JOINKEYS FILE=F1,FIELDS=(1,7,A) 
  JOINKEYS FILE=F2,FIELDS=(1,7,A) 
  JOIN UNPAIRED,F2,ONLY           
  SORT FIELDS=COPY                 
//*                               
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