create or replace trigger forbid_ddl
before ddl on DATABASE
begin
--if ora_dict_obj_owner = ora_login_user then
-- return;
-- end if;
raise_application_error (-20000, ‘零一二三四五六七八九零一二三四五六七八九零一二三四五六七八九零一二三四五六七八九零一二三四五六七八九零一二三四五六七八九零一二三四五六七八九零一二三四五六七八九零一二三四五六七八九零一二三四五六七八九‘);
end;
