create table emp(
　　  id int not null primary key,
　　  name varchar(10)
　　  );

　　  create table emp_dept(
　　  dept_id varchar(4) not null,
　　  emp_id int not null,
　　  emp_name varchar(10),
　　  primary key (dept_id,emp_id));

　　  insert into emp() values
　　  (1,"Dennis-1"),
　　  (2,"Dennis-2"),
　　  (3,"Dennis-3"),
　　  (4,"Dennis-4"),
　　  (5,"Dennis-5"),
　　  (6,"Dennis-6"),
　　  (7,"Dennis-7"),
　　  (8,"Dennis-8"),
　　  (9,"Dennis-9"),
　　  (10,"Dennis-10");

　　  insert into emp_dept() values
　　  ("R&D",1,"Dennis-1"),
　　  ("DEv",2,"Dennis-2"),
　　  ("R&D",3,"Dennis-3"),
　　  ("Test",4,"Dennis-4"),
　　  ("Test",5,"Dennis-5");