How to read a sequential file in reverse order



Support for OS/VS COBOL, VS COBOL II, COBOL for OS/390 & VM and Enterprise COBOL for z/OS

How to read a sequential file in reverse order

Postby nikhilgalgate » Wed Jan 23, 2008 2:06 pm

Hi,

Can any one post that is the cobol having the facility to read a sequential file(Other than on tape) in reverse order?. If not , is it possible??
:?

Thanks,
nikhilgalgate
 
Posts: 9
Joined: Tue Dec 25, 2007 1:12 pm
Has thanked: 0 time
Been thanked: 0 time

Re: How to read a sequential file in reverse order

 

Re: How to read a sequential file in reverse order

Postby arunprasad.k » Wed Jan 23, 2008 3:08 pm

nikhilgalgate,

You can NOT read a sequential file in reverse order using COBOL read statement.

But that functionality is there in FileAid.

Use the following statement in SYSIN to copy that file in reverse order and then use the file in sequential mode in COBOl.

$$DD01 COPYBACK


Arun.
arunprasad.k
 
Posts: 110
Joined: Thu Dec 27, 2007 5:18 pm
Has thanked: 0 time
Been thanked: 0 time


Return to IBM Cobol

 


  • Related topics
    Replies
    Views
    Last post