SQL & PL/SQL

hi

Here is a senario

select * from emp

--this would run with a single thread

select /*+PARALLEL (emp,10)*/ * from emp

-- this query would run with 10 threads

now considering

ALTER SESSION FORCE PARALLEL QUERY PARALLEL 2

select /*+PARALLEL (emp,10)*/ * from emp

--
will this run with 10 threads or 10*2 = 20 threads

Please let me know