--小写数字转大写，只是单纯的将数字转换为大写了，还要加单位create or replace function chinese(number1 number) return varchar2 is  Result varchar2(30):=‘ ‘;  v_chinese varchar2(25):=‘零壹贰叁肆伍陆柒捌玖‘;  v_char varchar2(10);begin   for i in 1..length(number1) loop  select substr(v_chinese,substr(number1,i,1)+1,1) into v_char from dual;  Result:=Result||v_char;  end loop;   return(Result);end chinese;