日期:2014-05-18 浏览次数:20723 次
(select * from employee inner join works using (employee_name)) except (select * from employee inner join works using (employee_name) where company_name = 'First Bank Corporation')
select *
from employee inner join works using (employee_name)
except
select *
from employee inner join works using (employee_name)
where company_name = 'First Bank Corporation'