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");