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Extract n number of records from KEY value.

 
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AJAYREDDY

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Joined: 17 Feb 2007
Posts: 52
Location: USA

PostPosted: Tue Dec 01, 2009 8:03 am    Post subject: Extract n number of records from KEY value.
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Hi,

I need to extract records from a file. I need n records from Key value. The Key starts at position 2 , 10 bytes.

For example if KEY is ABCD123456 which is 10 bytes Character, I need next 50000 records starting from this KEY. I tried with INCLUDE COND but it is no use. It only extracts 1 record in output file. I tried with OPTION STOPAFT=50000 but do not know how/where to specify the starting Key value.

Thanks
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notonly4u

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Joined: 26 Apr 2005
Posts: 87
Location: Hyderabad

PostPosted: Tue Dec 01, 2009 9:30 am    Post subject:
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Is your key is in sorted order?

If so, try giving GT your key and stopaft 50000

Regards
Tanden
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Escapa

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Joined: 16 Feb 2007
Posts: 1399
Location: IL, USA

PostPosted: Tue Dec 01, 2009 1:54 pm    Post subject:
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Assuming your input dataset LRECL is 80
Below is sortstep to give desired result.
Code:

//S1    EXEC  PGM=SORT       
//SORTIN DD DSN=yourinutdatasethere
//SORTOUT DD DSN=youroutputdatasethere                           
//SYSOUT    DD  SYSOUT=*                         
//SYSIN    DD  *                                 
  OPTION COPY                                                           
  INREC IFTHEN=(WHEN=GROUP,BEGIN=(2,10,CH,EQ,C'ABCD123456'),           
               PUSH=(81:SEQ=8))                                         
  OUTFIL INCLUDE=(81,8,ZD,GE,1,AND,81,8,ZD,LE,50000)                       
/*                                                                     
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Frank Yaeger

DFSORT Moderator


Joined: 15 Feb 2005
Posts: 7130
Location: San Jose, CA

PostPosted: Tue Dec 01, 2009 9:48 pm    Post subject:
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Sambhaji,

Note that you are also assuming that there is only one ABCD123456 record in the file. Because a second ABCD123456 record would start a new group with a sequence number of 1, e.g.

ABCD123456 1
ABCD123457 2
ABCD123458 3
ABCD123456 1 <- seqnum starts at 1 again

If there is only one ABCD123456 record, then this would be simpler:

Code:

  OPTION COPY                                                 
  INREC IFTHEN=(WHEN=GROUP,BEGIN=(2,10,CH,EQ,C'ABCD123456'),   
    RECORDS=50000,PUSH=(81:ID=1))                             
  OUTFIL INCLUDE=(81,1,CH,NE,C' '),                           
    BUILD=(1,80)                                               
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