Subject [IBO] Re: EIB_DatasetError deleting row
Author Ed Dressel
> You would usually get this sort of error if your application logic
> allows users to both insert and delete the same record inside the
> same transaction. Failing to prevent this kind of application flow
> has the potential to raise other exceptions as well, including the
> "Too many savepoints" one.

In this case the record exist prior to the application starting.