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earsha
New User
Joined: 16 Mar 2007
Posts: 17
Location: Pune
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| How may files a single cobol program read?is it 255 |
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dick scherrer
Moderator Emeritus
Joined: 23 Nov 2006
Posts: 19244
Location: Inside the Matrix
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Hello,
You will get more usable replies if you describe what your requirement is.
Depending on what you actually need to do the answer may vary. |
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earsha
New User
Joined: 16 Mar 2007
Posts: 17
Location: Pune
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| i want to read 270 files in a single program.so is it possible? |
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mohitsaini
Warnings : 1
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Joined: 15 May 2006
Posts: 92
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Do all the files have different LRECLs??
- Mohit |
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dbzTHEdinosauer
Global Moderator
Joined: 20 Oct 2006
Posts: 6966
Location: porcelain throne
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hard to understand how someone who does not know enough about cobol to find out how many FD's maybe declared in a COBOL program, would have the witherwithall to code such a match/merge?
again, what do you need to do with these 270 files? |
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Anuj Dhawan
Superior Member
Joined: 22 Apr 2006
Posts: 6250
Location: Mumbai, India
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| earsha wrote: |
| i want to read 270 files in a single program.so is it possible? |
Ok, what's the problem did you face..? |
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jckraheja
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Joined: 19 May 2008
Posts: 13
Location: Pune
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| In my opinion,we can use maximum 3273 files in an single cobol program...as this is the limit for number of DD statement that we able to defined in the JCL. |
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Anuj Dhawan
Superior Member
Joined: 22 Apr 2006
Posts: 6250
Location: Mumbai, India
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Hi,
| jckraheja wrote: |
| In my opinion,we can use maximum 3273 files in an single cobol program...as this is the limit for number of DD statement that we able to defined in the JCL. |
Please direct me to a pointer stating this. |
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Bill Dennis
Active Member
Joined: 17 Aug 2007
Posts: 562
Location: Iowa, USA
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It's a little more complex. Look at the MVS Initialization and Tuning Reference manual for a description of the TIOT size. This can vary by site and controls the maximum number of DDs without concatenations and with files on a single device.
You'll need to know the setting for your site. Ask the sysprogs. |
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Phrzby Phil
Senior Member
Joined: 31 Oct 2006
Posts: 1042
Location: Richmond, Virginia
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| I had no idea personal opinions could settle specific technical issues. |
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dick scherrer
Moderator Emeritus
Joined: 23 Nov 2006
Posts: 19244
Location: Inside the Matrix
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Hi Phil,
| Quote: |
| I had no idea personal opinions could settle specific technical issues. |
Surely, you jest. . . With the time you've been in the game 
Seems to often depend on one's pay grade or billing rate.
The reason i hedged on the number of files is because of some of the things mentioned here and the entire business of dynamic allocation.
It would be interesting to hear why 270 individual files need to be processed in a single program. If we understood the real requirement, we might be able to offer some suggestions. |
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enrico-sorichetti
Superior Member
Joined: 14 Mar 2007
Posts: 10873
Location: italy
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| Quote: |
| i want to read 270 files in a single program.so is it possible? |
it might be interesting to understand the application/business requirements
that lead to such a design |
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