declare subtype dt_Handle is number; mol dt_Handle; dummy number; ismiles varchar2(4000); begin ismiles := 'Oc1ccccc1'; mol := dt_smilin( ismiles ); dbms_output.put_line('Proton count for ' || ismiles || ' is ' || proton_count(mol)); dummy := dt_dealloc(mol); ismiles := 'OC1CCCCC1'; mol := dt_smilin( ismiles ); dbms_output.put_line('Proton count for ' || ismiles || ' is ' || proton_count(mol)); dummy := dt_dealloc(mol); end; /