my application doesn't use DB....not able to do this without using the
Random? ... without DB?

On 22 jun, 14:22, Javier Guerra Giraldez <[email protected]> wrote:
> On Tue, Jun 22, 2010 at 12:11 PM, Waleria <[email protected]> wrote:
> > I have a system that generate graphs and files .dat. However,  i'm
> > having a problem, when two people access the system simultaneously may
> > happen that the graph of a person to replace the second person, what
> > can I do to make it not happen?
>
> you have to get some way to keep both users separate.  one approach
> would be to create DB records for each task, and use the record ID as
> part of the file name.  another would be to use the session ID.
>
> --
> Javier

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