Oracle - difference or changes between two rows from two tables

In the above figure we read the "/" as "not 
in" and the "∪" 
as "union".   In sum, we want the table comparison SQL to find:
 

select *
from 
(
( select * from employee1
  minus 
  select * from employee2)
union all
( select * from employee2
  minus
  select * from employee1)
)