金额大小写转换(3)

declare
    je    number := 1000000000100000.01;
    snum  varchar2(30) := to_char(round(abs(je * 100)));
    len   pls_integer := length(snum);
    sch   varchar2(30) := '壹贰叁肆伍陆柒捌玖';
    sjin  varchar2(80) := '分角圆拾佰仟万拾佰仟亿拾佰仟万拾佰仟';
    srmb  varchar2(100) := '';
    num   pls_integer;
    flage boolean := true;
begin
    for i in 1 .. len
    loop
        num := to_number(substr(snum, len - i + 1, 1));
        if i = 11 and substr(srmb, 1, 1) = '万' then
            srmb := case when substr(srmb, 2, 1) not in ('零', '圆') then '零' end || substr(srmb, 2);
        end if;
        if num > 0 then
            srmb  := substr(sch, num, 1) || substr(sjin, i, 1) || srmb;
            flage := true;
        elsif i in (3, 7, 11, 15) then
            srmb  := substr(sjin, i, 1) || srmb;
            flage := false;
        elsif flage then
            srmb  := case when i = 1 then '整' else '零' || srmb end;
            flage := false;
        end if;
    end loop;
    if je < 0 then
        srmb := '负' || srmb;
    end if;
    dbms_output.put_line(srmb);
end;