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Extracting N number of records based on particular value

 
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ranjanp

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Joined: 02 May 2006
Posts: 25

PostPosted: Thu Jan 22, 2009 4:44 am    Post subject: Extracting N number of records based on particular value
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Hi All,

I tried searching the forums for this but was unable to find the solution. I apologize, if this topic has already been discussed and I was not able to find it.

I have a file with first name starting from column 10 till 35.

I have 1000000 records in it.

I also have a subset of 100 members (first name).

Is there a way I can extract these 100 members using a JCL, I do not want to put all the 100 FIRST NAMES in INCLUDE condition.
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dick scherrer

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Joined: 23 Nov 2006
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PostPosted: Thu Jan 22, 2009 6:50 am    Post subject:
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Hello,

Which sort product is used on your system?

Do you have Easytrieve?

One way to do what you want is to sort both files by first name (making a copy of one or both if the original sequence needs to be preserved) and then "matching" the 2 files writing the "hits" to a file of only the 100 names you want.
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dick scherrer

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PostPosted: Thu Jan 22, 2009 6:52 am    Post subject:
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To continue -

If this is a one-time requirement and the 100 names are already in a file, it would be easy to create the INCLUDEs with the editor. . .
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lohithegde

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Joined: 18 May 2008
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Location: Chennai

PostPosted: Thu Jan 22, 2009 9:24 am    Post subject:
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Hi Ran

I am unable to understand your req

Quote:
I also have a subset of 100 members (first name).

Is there a way I can extract these 100 members using a JCL, I do not want to put all the 100 FIRST NAMES in INCLUDE condition


1. WHich is that subset
2. Member?

Please expain with one simple example
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Arun Raj

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Joined: 17 Oct 2006
Posts: 2239
Location: @my desk

PostPosted: Thu Jan 22, 2009 9:30 am    Post subject:
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ranjanp,

If you have SyncSort for z/OS Release 1.2 or higher, I think you can easily do this using a SyncSort JOIN application to extract the matching records.

As asked above, please mention the sort product used in your shop- DFSORT or SyncSort. Also the input LRECL/RECFM.
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