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Extract Records

 
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vijay
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Joined: 09 May 2003
Posts: 131
Topics: 64
PostPosted: Mon May 10, 2004 12:34 pm    Post subject: Extract Records Reply with quote
Hi,
I've 2 fields in the file
ID and amt.ID field can have duplicates also.If total amount for a particular ID (sum of the amount field for each record for that ID) is > 1000,I need to copy all the records for that ID to another file.Do u know the easiest way to do this?I'm thinking of trying with EZT.

Input:
ab 1000 ...........
ab 4000 ...........
ab 9000 ...........(Other feilds in the file)
bc 1000 ...........
cd 9000 ...........
cd 9000 ...........

Output:
ab 1000 ...........
ab 4000 ...........
ab 9000 ...........
cd 9000 ...........
cd 9000 ...........


Thanks,
Vijay
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Frank Yaeger
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Joined: 02 Dec 2002
Posts: 1618
Topics: 31
Location: San Jose
PostPosted: Mon May 10, 2004 12:56 pm    Post subject: Reply with quote
Assuming that your input file has RECFM=FB and LRECL=80, and that your amount is an 8-byte ZD value starting in position 4 (I'm guessing it isn't really a 4-byte ZD value as you show since that would cause the totals to overflow), this DFSORT/ICETOOL job will do what you asked for. You'll need DFSORT R14 PTF UQ90053 (Feb, 2003) to use SPLICE.

Code:

//S1    EXEC  PGM=ICETOOL
//TOOLMSG   DD  SYSOUT=*
//DFSMSG    DD  SYSOUT=*
//IN DD DSN=... input file
//T1 DD DSN=&&T1,UNIT=SYSDA,SPACE=(CYL,(5,5)),DISP=(,PASS)
//CON DD DSN=*.T1,VOL=REF=*.T1,DISP=(OLD,PASS)
//    DD DSN=*.IN,VOL=REF=*.IN,DISP=(OLD,PASS)
//OUT DD DSN=...  output file
//TOOLIN DD *
* IN->T1:  Extract one record for each key with a sum > 1000.
  SORT FROM(IN) USING(CTL1)
* T1/IN->OUT:  Extract all records for each key with a sum > 1000.
  SPLICE FROM(CON) TO(OUT) ON(1,2,CH) WITHALL WITH(1,80)
//CTL1CNTL DD *
  OPTION ZDPRINT
  SORT FIELDS=(1,2,CH,A)
  SUM FIELDS=(4,8,ZD)
  OUTFIL FNAMES=T1,INCLUDE=(4,8,ZD,GT,+1000)
/*

_________________
Frank Yaeger - DFSORT Development Team (IBM)
Specialties: JOINKEYS, FINDREP, WHEN=GROUP, ICETOOL, Symbols, Migration
DFSORT is on the Web at:
www.ibm.com/storage/dfsort
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kolusu
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Joined: 26 Nov 2002
Posts: 12377
Topics: 75
Location: San Jose
PostPosted: Mon May 10, 2004 1:14 pm    Post subject: Reply with quote
Vijay,

The following easytrieve will give you the desired results.

Code:

//STEP0100 EXEC PGM=EZTPA00                           
//STEPLIB  DD DSN=EASYTREV.LOADLIB,         
//            DISP=SHR                                 
//SYSPRINT DD SYSOUT=*                                 
//SYSOUT   DD SYSOUT=*                                 
//SYSSNAP  DD SYSOUT=*                                 
//SYSUDUMP DD SYSOUT=*                                 
//FILEIN   DD *                                       
AB 1000 ...........                                   
AB 4000 ...........                                   
AB 9000 ...........(OTHER FEILDS IN THE FILE)         
BC 1000 ...........                                   
CD 9000 ...........                                   
CD 9000 ...........                                   
//FILEOUT  DD SYSOUT=*,LRECL=80,RECFM=FB               
//SYSIN    DD *                                       
  FILE FILEIN                                         
       IN-KEY              001 002 A                   
       IN-QTY              004 004 N 0                 
                                                       
  FILE FILEOUT FB (0 0)                               
                                                       
  FILE TOT FB (0 0) VIRTUAL RETAIN                     
       TOT-KEY        01  02 A                         
       TOT-TALLY      03  10 P  0                     
       TOT-QTY        13  10 P  0                     
                                                       
                                                       
  JOB INPUT (FILEIN KEY (IN-KEY))                       
                                                       
   PRINT RPT                                           
   REPORT RPT SUMMARY SUMFILE TOT                       
   SEQUENCE IN-KEY                                     
   CONTROL IN-KEY                                       
   LINE IN-KEY IN-QTY                                   
                                                       
  JOB INPUT (TOT    KEY (TOT-KEY)    +                 
             FILEIN KEY (IN-KEY))                       
   IF MATCHED                                           
      IF TOT-QTY > 1000                                 
         PUT FILEOUT FROM FILEIN                       
      END-IF                                           
   END-IF                                               
/*                                                     


Hope this helps...

Cheers

Kolusu
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