text: --+ holdcas on;
  set names utf8;
  set system parameters 'intl_number_lang = it_IT';
  set system parameters 'intl_date_lang = it_IT';
  -- string - date function with 'use_locale_number_format' system parameter
  
  select to_char (123456.789123);
  
  select to_number ('123456.789123');
  
  select to_number ('123.456,789','999.999,999');
  
  select to_number ('123,456.789','999,999.999');
  
  
  
  select to_char (123456.789123);
  
  select to_number ('123456.789123');
  
  select to_number ('123.456,789','999.999,999');
  
  select to_number ('123,456.789','999,999.999');
  
  
  set system parameters 'intl_date_lang = en_US';
  set system parameters 'intl_number_lang = en_US';
  set names iso88591;
  commit;
  --+ holdcas off;