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Change only header rec to have low values from col 2 to 11

 
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kpmdreamz

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Joined: 05 Apr 2007
Posts: 4
Location: Bangalore

PostPosted: Mon May 04, 2009 12:09 pm    Post subject: Change only header rec to have low values from col 2 to 11
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Hi,
I have a file in which the header record is incorrect (It should have low values from col 2 to 11). I want a sort step to introduce low values from col 2 to 11 i.e. 9 bytes.
How to do it.
I have tried

Code:

   SORT FIELDS=COPY
   OUTREC IFTHEN=(WHEN=INIT,OVERLAY=(2:X'000000000000000000'))


But this changes all records. How to apply it to only the header record.
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Escapa

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

PostPosted: Mon May 04, 2009 12:18 pm    Post subject:
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Yes it will change all the records..as you are doing overlay in WHEN=INIT
which applies to all records.

can you post sample input file. How header is identified? using some record type indicator? or positioned as first record?
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kpmdreamz

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Location: Bangalore

PostPosted: Mon May 04, 2009 12:21 pm    Post subject: Reply to: Change only header rec to have low values from col
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Thanks for the reply Sambhaji,
My file has only one header positioned as first record (doesn't have any rec type indicator)
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Escapa

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Posts: 1399
Location: IL, USA

PostPosted: Mon May 04, 2009 1:10 pm    Post subject:
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Assuming your LRECL is 80

Code:

//SYSIN    DD  *                                                   
  SORT FIELDS=COPY                                                 
  INREC IFTHEN=(WHEN=INIT,OVERLAY=(81:SEQNUM,8,ZD)),               
     IFTHEN=(WHEN=(81,8,ZD,EQ,1),OVERLAY=(2:X'000000000000000000'))
  OUTREC BUILD=(1,80)                                               
/*                                                                 
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kpmdreamz

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Joined: 05 Apr 2007
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Location: Bangalore

PostPosted: Mon May 04, 2009 1:36 pm    Post subject: Reply to: Change only header rec to have low values from col
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Thanks a lot.
It worked great.
Thanks for intoducing the concept of SEQNUM. I checked the manual its great stuff.
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Frank Yaeger

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

PostPosted: Mon May 04, 2009 9:21 pm    Post subject:
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Note that instead of 2:X'000000000000000000' you can use 2:9Z or 2:9X'00'.
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kpmdreamz

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PostPosted: Fri Jun 12, 2009 11:26 am    Post subject:
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Thanks Frank - Saw it after a long time icon_smile.gif
I had indeed used 2:9x'00'. But i did not know that i could use 2:9Z
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