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sonasheetal
New User
Joined: 08 Jun 2005
Posts: 27
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Hi all,
Can we open the same flat file more than once in the cobol program?
Regrads,
Sona. |
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rz061m
New User
Joined: 03 Mar 2006
Posts: 48
Location: Chennai
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| No, the program will abend saying FILE ALREADY OPEN |
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anand_sundaramurthy
New User
Joined: 07 May 2007
Posts: 12
Location: Chennai
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Hi sona,
Why do u need to open the same file more than once when its already opened?is there any specific requirement or u jus wanna know? |
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sonasheetal
New User
Joined: 08 Jun 2005
Posts: 27
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Thanks for your quick reply. But still I need a clarification.
After closing the file with CLOSE verb shall we open the same file once again in the same program? |
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itsmeaparna
New User
Joined: 28 Jul 2006
Posts: 4
Location: pune
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yes, u can.
After CLOSING the file with CLOSE verb, u can OPEN the same file again in same COBOL pgm. |
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Phrzby Phil
Senior Member
Joined: 31 Oct 2006
Posts: 1042
Location: Richmond, Virginia
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| Or, are you asking if you can opent he same dataset more than once? This involves having more than one COBOL file point to the same dataset. |
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dick scherrer
Moderator Emeritus
Joined: 23 Nov 2006
Posts: 19244
Location: Inside the Matrix
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Hello,
| Quote: |
Can we open the same flat file more than once in the cobol program?
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Not at the same time - whether it is the same FD or the same dataset.
You should be able close and re-open either the FD or the dataset if it is referenced by multiple FD/DD definitions. |
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agkshirsagar
Active Member
Joined: 27 Feb 2007
Posts: 691
Location: Earth
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| Quote: |
| You should be able close and re-open either the FD or the dataset if it is referenced by multiple FD/DD definitions. |
Dick,
I think it is possible with single FD/DD too..
psuedocode
| Code: |
open input filea
do some operations
close filea
open extend filea
add some records
close filea
open input filea
do some opeartions
close filea |
Here filea is opened many times but in JCL single DD will be required.
Please let me know if you meant something else. |
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dick scherrer
Moderator Emeritus
Joined: 23 Nov 2006
Posts: 19244
Location: Inside the Matrix
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| Yes, that is what my reply said. It just requires the close before the second open. |
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