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Re: [open-cobol-list] ISAM replacement (was Team setup)

From: Bernard Giroud
Subject: Re: [open-cobol-list] ISAM replacement (was Team setup)
Date: Mon Nov 8 10:21:46 2004

Thanks Christian,

That ("How about";) looks promising.


Bernard Giroud
Credit Lyonnais (Suisse) SA
----- Original Message -----
From: "Christian Lademann" <address@hidden>
To: <address@hidden>
Sent: Friday, November 05, 2004 5:53 PM
Subject: Re: [open-cobol-list] Team setup

On Thu, 28 Oct 2004 16:21:41 +0200
address@hidden wrote:

> Hello,
> I read this point in the TODO file :
> ** New backends for INDEXED files
>  - Any alternative to BerkeleyDB?
>  - Use DB (PostgreSQM, MySQL, etc.) as backends

Hi, OpenCOBOL team,

I'm happy to see things going forward :-)

How about


Christian Lademann
> Actually, I wrote my own implementation of indexed and relative files.
> I used it for 3 years for personnal needs.
> It could deal with big files (20 millions records, and more than 500 Mo)
> good performances. (based on trees and mmap)
> It has some deficiencies and must be improved : keys are single fields,
> is not ready, etc .. And surely it has some bugs.
> Do you think it could be an alternative to BerkeleyDB. Is it a good idea
or not
> ? My opinion is yes but I am partial. And there is still a lot of work to
> it a solid product. It would be a full job, and doing that I could not do
> another thing. Furthermore the task we subscribe is COBOL compilation, not
> management.
> Yet, I think that a COBOL compiler should have its own implementation for
> and should not depend on third products like BerkeleyDB. (Althought I am a
> fan of it).
> It has to be self-sufficient.
> And DB (MySQL, Postgres, ...) induce constraints and minimum
> tasks which I think are not compatible with the simple needs of an ISAM
> What is your opinion ?
> Cheers
> Henry

*  Christian A. Lademann, ZLS Software GmbH          mailto:address@hidden
*  ZLS Software GmbH
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