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sanjeevkumarchauhan
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Joined: 03 Oct 2005
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Location: India
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 Posted: Mon Oct 24, 2005 3:47 pm Post subject: Writing Records into an Output File thru JCL |
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Hi,
In one of the recent interviews I attended, I was asked a question, like what is the way (basically any keyword or Parameter in JCL) thru which the number of records to be written to the output file can be controlled. To be more clear, assume I have an input file with N records and I need to dump say M (M<=N) to another output file not thru any application program but thru the JCL only.
Please let me know , whether any such Keyword or Parameter existing doing this sort of Job for us.
Thanks & Regards
SK Chauhan
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SK Chauhan |
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kolusu
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Joined: 26 Nov 2002
Posts: 12394
Topics: 75
Location: San Jose
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| Posted: Mon Oct 24, 2005 4:26 pm Post subject: |
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sanjeevkumarchauhan,
There are 2 parameters in sort to control the no: of output records to be written. You can use the STOPAFT=n operand of OPTION or the ENDREC operand of OUTFIL.
ex:
| Code: |
OPTION COPY,STOPAFT=n
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or
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OPTION COPY
OUTFIL ENDREC=n
where n is the desired number of records.
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Hope this helps..
Cheers
Kolusu
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sanjeevkumarchauhan
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Joined: 03 Oct 2005
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Location: India
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| Posted: Tue Oct 25, 2005 10:18 am Post subject: Thanks for the reply |
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Hi Kolusu,
I'm really thankful for the information provided on this problem
Thanks & Regards
SK CHauhan
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bablack
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Joined: 04 Dec 2002
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Location: Little Falls, NJ
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| Posted: Tue Oct 25, 2005 1:47 pm Post subject: |
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| Quote: | | like what is the way (basically any keyword or Parameter in JCL) thru which the number of records to be written to the output file can be controlled. To be more clear, assume I have an input file with N records and I need to dump say M (M<=N) to another output file not thru any application program but thru the JCL only. |
To answer your exact question, no, there is no JCL parameter which can control the number of records to be written to an output file. If the output is to a disk dataset, you can control the size of the dataset, which indirectly controls the number of records, but the program will ABEND when the file is full.
Kolusu's answer referred to SORT parameters, which are valid only if you are copying records with SORT or one of the utilties which come with your SORT product. But those are parameters to the application, which is SORT in this case, not JCL parameters.
If you were copying records from file to file with the IBM utility IDCAMS, with the REPRO function, the COUNT(nn) parameter will limit the number of records copied. But again this is a parameter to the IDCAMS program, not JCL.
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Bruce A. Black
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