drop database if exists hrs;
create database hrs default charset utf8;

use hrs;

drop table if exists tb_emp;
drop table if exists tb_dept;

create table tb_dept
(
dno int not null comment '编号',
dname varchar(10) not null comment '名称',
dloc varchar(20) not null comment '所在地',
primary key (dno)
);

insert into tb_dept values 
	(10, '会计部', '北京'),
	(20, '研发部', '成都'),
	(30, '销售部', '重庆'),
	(40, '运维部', '深圳');

create table tb_emp
(
eno int not null comment '员工编号',
ename varchar(20) not null comment '员工姓名',
job varchar(20) not null comment '员工职位',
mgr int comment '主管编号',
sal int not null comment '员工月薪',
comm int comment '每月补贴',
dno int comment '所在部门编号',
primary key (eno)
);

alter table tb_emp add constraint fk_emp_mgr foreign key (mgr) references tb_emp (eno);
alter table tb_emp add constraint fk_emp_dno foreign key (dno) references tb_dept (dno);

insert into tb_emp values 
	(7800, '张三丰', '总裁', null, 9000, 1200, 20),
	(2056, '乔峰', '分析师', 7800, 5000, 1500, 20),
	(3088, '李莫愁', '设计师', 2056, 3500, 800, 20),
	(3211, '张无忌', '程序员', 2056, 3200, null, 20),
	(3233, '丘处机', '程序员', 2056, 3400, null, 20),
	(3251, '张翠山', '程序员', 2056, 4000, null, 20),
	(5566, '宋远桥', '会计师', 7800, 4000, 1000, 10),
	(5234, '郭靖', '出纳', 5566, 2000, null, 10),
	(3344, '黄蓉', '销售主管', 7800, 3000, 800, 30),
	(1359, '胡一刀', '销售员', 3344, 1800, 200, 30),
	(4466, '苗人凤', '销售员', 3344, 2500, null, 30),
	(3244, '欧阳锋', '程序员', 3088, 3200, null, 20),
	(3577, '杨过', '会计', 5566, 2200, null, 10),
	(3588, '朱九真', '会计', 5566, 2500, null, 10);