Subject Re: [firebird-support] Strange API string truncation error
Author Ivan Prenosil
>>> arithmetic exception, numeric overflow, or string truncation
>> Have you tried ISQL ?
> Yes, I have (it was at the very bottom of my post) and it works.

Sorry, I overlooked it. But I think you did not try the same thing:
Your application uses UTF8 connection charset, while ISQL does not, right ?