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COBOL Program to Read two Infiles


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raj4neo
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Joined: 12 May 2006
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PostPosted: Tue Sep 15, 2015 4:37 am
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Hi ,

I have a Requirement of two read two input files

File A have Record Layout I1 I2 , I3 , I4 , I5 , I6 where I4 , I5 , I6 Is of Array data having 5 occurs

File A have Record Layout I1 I7 , I8 , I9 , I10 , I11 where I7 , I8 , I9 , I10, 1II Is of Array data having 20 occurs

I HAVE TO MATCH THE I1 in both file and write the output layout as

O1 , O2 , O3 , O4 , O5 , O6 , O7 ,O8,O9,O10,O11 , ALL THE OUTPUT ARRAY FILED 04-011 SHOULD HAVE ONLY ARRAY OF 5 OCCURS

could you please let know any sample code

Thanks in advance
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Robert Sample

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PostPosted: Tue Sep 15, 2015 5:08 am
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I have never heard of sample code for such a requirement -- so basically you are asking for us to give you the code. This is a HELP forum, not a WRITE-THE-CODE-FOR-YOU forum. If / when you have specific questions about specific problems, post them and we will (usually) be able to help.

Questions I would be asking:
1. Are the files sorted by I1 already?
2. What are the I1, I2, ... ? Are they separate records (and if so, how are records identified?)? If not, does every record have the same data (that is, does every record of file A have I1, I2, I3, I4, I5, I6 in sequence or can one -- or more -- of them be missing)?
3. What are the record lengths for file A, file B, and the output file?
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raj4neo
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PostPosted: Tue Sep 15, 2015 5:57 am
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I am not asking for Full code

Yes Both the Input files are in Sorted order

First File is having the Lrecl 5662 FB FORMAT

Second file is having the Lrecl 9000 FB Format

I1 is the Key Record and

I1 / I2 ARE THE SEPERATED RECORDS
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RahulG31

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PostPosted: Tue Sep 15, 2015 7:23 am
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Only If you had 'Googled', you would have got plenty of "sample codes" icon_evil.gif

You can do it even now and after that, as Robert suggested, come back with specifics of the issues you face.

.
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raj4neo
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PostPosted: Tue Sep 15, 2015 7:28 am
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Oh OK
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Robert Sample

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PostPosted: Tue Sep 15, 2015 7:43 am
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It sounds like you need to sit down and work through what to do -- create some test records for file A and file B (with matches on I1 and non-matches on I1), and manually use pen and paper to walk through what should happen. This can be a VASTLY helpful exercise as it gives you a feel for what the logic needs to be. Things to be resolved:
- what if an I1 in file A does not have a match in file B?
- what if an I1 in file B does not have a match in file A (usually the same thing but sometimes not)?
- how long will the output record be?
- how many records in file A and B? How many output records do you expect from those records?

Many programmers tend to start coding way too early, before they fully understand the data to be processed. When this happens, they either have to scrap some of what they've written and write correct code (which often they don't want to do after investing the time in the code), or (FAR more frequently) they attempt to shoehorn the written code into the needed process, causing continuing issues since the code doesn't really fit the data.
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Rohit Umarjikar

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PostPosted: Wed Sep 16, 2015 2:40 am
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I could get nothing. Please give us sample input,output . This is so high level.
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Nic Clouston

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PostPosted: Wed Sep 16, 2015 1:46 pm
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Sounds like a standard 2-file match
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Bill Woodger

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PostPosted: Wed Sep 16, 2015 2:14 pm
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Yes, Nic, to me also. Even if a modified one (the the subsequent records don't have a key).

Depending on whether the tables (COBOL doesn't have arrays) coincide, chopping down 20 to five may be simple. But, we can't tell.
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