Helen,

thank you very much, this has helped a lot.

> value, is not (or ought not to be) a problem. You should review your
> program flow, however, and only call DML methods on queries when the DML
> operation is actually needed.

I left the GeneratorLink property undefined and assign a newly generated
value just before a new row is posted.
However, I could only get it pass the compiler with
...FieldByName('ID').AsInteger := cnBestell.Gen_ID('Gen_tabBestell',1), note
the apostrophe.

Florian