Subject Cursor unknown error -504
Author Bob Zirbel
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.