share a database

[Ruslan Zasukhin]

On 7/5/06 12:10 PM, "sylvain.perque at ac-reims.fr"
<sylvain.perque at ac-reims.fr> wrote:

Sylvain,

But you cannot control how to open db.

In prev letter I point:
    IF you set flag -- then you make db READ ONLY.

If there is no such flag, then Valentina open db ALWAYS exclusive.
So other users will simply fail open it on Windows and OS 9.

* BUT OS X do allow open that file again. This is FEATURE of OS X.
* On OS X you need self create any empty file in the same fodler as db.
    and write code which check IF this file present before try open db.
    This is recommendation from Apple.



> Well I have to know exactly how it works :
> 
> a) If someone open database in ReadOnly mode, can sommeone else open it in
> ReadOnly mode at the same time ?
> b) If someone open database in ReadOnly mode, can sommeone else open it in
> ReadWrite mode at the same time ?
> c) If someone open database in ReadWrite mode, can sommeone else open it in
> ReadOnly mode at the same time ?

-- 
Best regards,

Ruslan Zasukhin
VP Engineering and New Technology
Paradigma Software, Inc

Valentina - Joining Worlds of Information
http://www.paradigmasoft.com

[I feel the need: the need for speed]