I have created a database named SECURITY.db and a user group named ALL and a user named NOBODY (user level Data entry which is the lowest one).
The group ALL has only the right to read all elements, not to write and not to execute.
NOBODY is a member of the group ALL and therefore he can only read. Ok. NOBODY is a little bit stupid and the administrator want to be sure, that NOBODY doesn’t destroy data. Big surprise: NOBODY can not punch data, but he can delete the complete data record! Oh Oh! – Question: How can I avoid that?

Kind regards

Little bit disappointed. Anyhow: Thank you very much
for the answer!