Re: Order of writen records.

[geir.kildal@xxxxxxxxxxxxxx]

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Velazar.

You do not say if your physical file has a key or not, and you do not say
how you browse your file(DFU/QUERY/others).

My experience is like this:  Normally, if you write to a file, the records
will be added on by one to the end of the physical file(if it doesn't have
a key).  You  can write via a logical file, but still the records will be
found at the end of the non-keyed physical file(using DFU).  If your
physical file has a key,  or you browse a logical file, the records will
be found in key-sequence, of course.


Mvh.

Geir Kildal






veleazar@gseguros.com
Sent by: cobol400-l-admin@midrange.com
06.05.2002 13:32
Please respond to cobol400-l


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        Subject:        Order of writen records.


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Hi every one.

I need some help (any would be thank) to fix a problem I have when writing
into a file from 2 diferent subprograms calles from the same main program
on the same execution.

I have a main program (A) calling 2 programs (B and C). They are all cobol
programs and A is called fron a main CL program. There is a file (F) 800
positions long that would recive information from programs B and C.



The sistem works this way:

A starts and begin the cicle:
- A calls B. B opens file F and writes 2 records and goes back.
- A calls C. C opens file F,  writes 8 records to file F and goes back.
- A calls B again and B writes 2 new records to file F and goes back.
the cicle terminates and A finishes.

File F is never closed but at the end when probrams B and C are called and
should never be, cause there could be 1000's of cicles like this in a
single execution.

When the file is browsed I find the 'C' records first and all the 'B'
records together at the end.

I think the records order has somthing to do with the buffer size and the
usage of a diferent path to acces F for each program B and C.

Is there any way to force the order of the records as they were writen?


Virgilio Eleazar Rodríguez Domínguez
Tel: 963 87 59 00 ext. 6156
Aseval, S.A.
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