is
result raw(128);
num number(16);
begin
    select dbms_crypto.hash(utl_raw.cast_to_raw('asliie.sadfs'),
                            DBMS_CRYPTO.hash_md5) 
    into result from dual;
    dbms_output.PUT_LINE(result);
    num := utl_raw.cast_to_number(result);
    DBMS_OUTPUT.PUT_LINE(num);
end test;