Temporary space used by SQL call in current session (oracle 10g)

select
        sql_text,
        sid,
        c.username,
        machine,
        tablespace,
        extents,
        blocks
from
        sys.v_$sort_usage a,
        sys.v_$sqlarea b,
        sys.v_$session c
where
        a.sqladdr = b.address and
        a.sqlhash = b. hash_value and
        a.session_addr = c.saddr
order by sid;

We can check, SQL call current session information and details. How much temporary space SQL call is using.