Subject Re: [IBO] Cursor unknown error -504
Author Bob Zirbel
Thanks Helen.

The problem seems to happen when you return to the application after
switching to another task or if the application has been idle for a
period of time. The error message is sitting there when the screen
appears. And it happens on stand alone machines as well as when
using a server. I have never seen it happen when actively using the
application.

The app has a timer that refreshes the data displayed in a grid
every minute in case someone adds a new record but this doesn't seem
to be the cause. I put a try - except around the refresh but it
doesn't trap the error.

If I knew what the error message means it might point me in the
right direction.

Regards

Bob



--- In IBObjects@yahoogroups.com, Helen Borrie <helebor@t...> wrote:
> At 03:53 AM 6/08/2004 +0000, you wrote:
> >Hi all
> >
> >This error, ISC error code 335544569, SQL error code -504 Cursor
> >unknown, has suddenly started appearing in my D7/IBO/Firebird
> >application. The error appears randomly when the application has
> >been idle for a period of time.
> >
> >The application is under development but it has been working fine
up
> >until now. I'm not sure if the problem is some corruption
somewhere
> >and if it is coming from IBO or Firebird itself.
> >
> >I can't find any documentation about this error so I would
> >appreciate any help I can get.
>
> When you say it appears randomly, what are you saying? That you
might be
> scrolling through a dataset and suddenly this error appears? Or a
user
> wakes up a sleeping workstation, does something to an app she left
active,
> and this happens?
>
> Is the client running on a remote workstation?
>
> etc.
> etc.
>
> Helen
>
>
>
>
> >Regards
> >
> >Bob
> >
> >
> >
> >
> >
> >
>
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