mysql_schemas.sql

Create table If Not Exists Salary (id int, employee_id int, amount int, pay_date date);
Create table If Not Exists Employee (employee_id int, department_id int);
Truncate table Salary;
insert into Salary (id, employee_id, amount, pay_date) values ('1', '1', '9000', '2017/03/31');
insert into Salary (id, employee_id, amount, pay_date) values ('2', '2', '6000', '2017/03/31');
insert into Salary (id, employee_id, amount, pay_date) values ('3', '3', '10000', '2017/03/31');
insert into Salary (id, employee_id, amount, pay_date) values ('4', '1', '7000', '2017/02/28');
insert into Salary (id, employee_id, amount, pay_date) values ('5', '2', '6000', '2017/02/28');
insert into Salary (id, employee_id, amount, pay_date) values ('6', '3', '8000', '2017/02/28');
Truncate table Employee;
insert into Employee (employee_id, department_id) values ('1', '1');
insert into Employee (employee_id, department_id) values ('2', '2');
insert into Employee (employee_id, department_id) values ('3', '2');