create table dept
( deptno int(2) not null,--部門編號
dname varchar(14),--部門名稱
loc varchar(13)--部門位址);
alter table dept add constraint pk_dept primary key (deptno);--設定主鍵為部門編號
create table emp
( empno int(4) not null,--員工編號
ename varchar(10),--員工名稱
job varchar(9),--崗位名稱
mgr int(4),--管理人員編號
hiredate date,--入職時間
sal int(7 ),--薪資
comm int(7 ),--獎金
deptno int(2)--部門編號);
alter table emp add constraint pk_emp primary key (empno);--設定主鍵為empno
alter table emp add constraint fk_deptno foreign key (deptno) references dept (deptno);
--設定外來鍵關聯為depino
insert into dept (deptno, dname, loc) values (10, 'accounting', 'new york');--c插入原始數-據
insert into dept (deptno, dname, loc) values (20, 'research', 'dallas');
insert into dept (deptno, dname, loc) values (30, 'sales', 'chicago');
insert into dept (deptno, dname, loc) values (40, 'operations', 'boston');
insert into emp (empno, ename, job, mgr, hiredate, sal, comm, deptno) values (7369, 'smith', 'clerk', 7902, str_to_date('17-12-1980', '%d-%m-%y'), 800,null,20);
insert into emp (empno, ename, job, mgr, hiredate, sal, comm, deptno)values (7499, 'allen', 'salesman', 7698, str_to_date('20-02-1981', '%d-%m-%y'),1600, 300, 30);
insert into emp (empno, ename, job, mgr, hiredate, sal, comm, deptno)values (7521, 'ward', 'salesman', 7698, str_to_date('22-02-1981', '%d-%m-%y'),1250, 500, 30);
insert into emp (empno, ename, job, mgr, hiredate, sal, comm, deptno)values (7566, 'jones', 'manager', 7839, str_to_date('02-04-1981', '%d-%m-%y'),2975, null, 20);
insert into emp (empno, ename, job, mgr, hiredate, sal, comm, deptno)values (7654, 'martin', 'salesman', 7698, str_to_date('28-09-1981', '%d-%m-%y'),1250, 1400, 30);
insert into emp (empno, ename, job, mgr, hiredate, sal, comm, deptno)values (7698, 'blake', 'manager', 7839, str_to_date('01-05-1981', '%d-%m-%y'),2850, null, 30);
insert into emp (empno, ename, job, mgr, hiredate, sal, comm, deptno)values (7782, 'clark', 'manager', 7839, str_to_date('09-06-1981', '%d-%m-%y'),2450, null, 10);
insert into emp (empno, ename, job, mgr, hiredate, sal, comm, deptno)values (7788, 'scott', 'analyst', 7566, str_to_date('19-04-1987', '%d-%m-%y'),3000,null, 20);
insert into emp (empno, ename, job, mgr, hiredate, sal, comm, deptno)values (7839, 'king', 'president', null, str_to_date('17-11-1981', '%d-%m-%y'),5000,null, 10);
insert into emp (empno, ename, job, mgr, hiredate, sal, comm, deptno)values (7844, 'turner', 'salesman', 7698, str_to_date('08-09-1981', '%d-%m-%y'),1500, 0, 30);
insert into emp (empno, ename, job, mgr, hiredate, sal, comm, deptno)values (7876, 'adams', 'clerk', 7788, str_to_date('23-05-1987', '%d-%m-%y'),1100,null, 20);
insert into emp (empno, ename, job, mgr, hiredate, sal, comm, deptno)values (7900, 'james', 'clerk', 7698, str_to_date('03-12-1981', '%d-%m-%y'),950,null, 30);
insert into emp (empno, ename, job, mgr, hiredate, sal, comm, deptno)values (7902, 'ford', 'analyst', 7566, str_to_date('03-12-1981', '%d-%m-%y'),3000,null, 20);
insert into emp (empno, ename, job, mgr, hiredate, sal, comm, deptno)values (7934, 'miller', 'clerk', 7782, str_to_date('23-01-1982', '%d-%m-%y'),1300,null, 10);
create table salgrade (
grade numeric primary key,--薪資等級
losal numeric,--最低薪資
hisal numeric--最高薪資);
insert into salgrade values (1, 700, 1200);--薪資等級為五
insert into salgrade values (2, 1201, 1400);
insert into salgrade values (3, 1401, 2000);
insert into salgrade values (4, 2001, 3000);
insert into salgrade values (5, 3001, 9999);
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