实验一oracle基本表定义创建查询插入
实验类型：验证性
实验学时：2学时
一、实验目的
掌握sql语句定义基本表，理解完整性约束定义方法。
二、实验内容
使用select语句完成以下操作，（1）或（2）二选一：
（1）建立教学数据库基本表,定义主码，姓名不能重复，成绩小于等于100，并录入模拟数据。
student(sno,sname,ssex,sage,sdept)
course(cno,cname,cpno,ccredit)
sc(sno,cno,grade)
（2）建立供应关系数据库基本表,定义外码，录入模拟数据。
s(sno,sname,status,city)
p(pno,pname,color,weight)
j(jno,jname,city)
spj(sno,pno,jno,qty)
三、实验结果参考
本指导书的实验参考均以ORACLE 为例。
（1）
create table student (
sno char(12) not null ,
sname varchar2(20) unique,
ssex char(3) not null check(ssex='男' or ssex='女'),
sage number(3）not null,
sdept varchar2(20) ,
primary key(sno)
);
create table course (
cno varchar2(6) not null ,
cname varchar2(20) not null ,
cpno varchar2(6) ,
ccredit number(2） ,
primary key (cno)
);
create table sc (
sno char(12) not null ,
cno varchar2(6) not null ,
grade number(3) check(grade<=100) ,
primary key (sno,cno)
) ;
insert into student(sno, sname, ssex, sage, sdept)
values('200215121', '李勇', '男',20,'cs');
insert into student(sno, sname, ssex, sage, sdept)
values('200215122', '刘晨', '女',19,'cs');
insert into student(sno, sname, ssex, sage, sdept)
values('200215123', '王敏', '女',18,'ma');
insert into student(sno, sname, ssex, sage, sdept)
values('200215125', '张立', '男',19,'is');
insert into course(cno, cname, cpno ,ccredit)
values('1', '数据库',5,4);
insert into course(cno, cname, cpno ,ccredit)
values('2', '数学',null,2);
insert into course(cno, cname, cpno ,ccredit)
values('3', '信息系统',1,4);
insert into course(cno, cname, cpno ,ccredit)
values('4', '操作系统',6,3);
insert into course(cno, cname, cpno ,ccredit)
values('5', '数据结构',7,4);
insert into course(cno, cname, cpno ,ccredit)
values('6', '数据处理',null,2);
insert into course(cno, cname, cpno ,ccredit)
values('7', 'pascal语言',6,4);
insert into sc(sno, cno, grade)
values('200215121','1',92);
insert into sc(sno, cno, grade)
values('200215121','2',85);
insert into sc(sno, cno, grade)
values('200215121','3',88);
insert into sc(sno, cno, grade)
values('200215122','2',90);
insert into sc(sno, cno, grade)
values('200215122','3',80);附加 SQL语句：
Conn system /密码；//以系统管理员身份登录
Select * from student;//查询学生表中所有的数据
Drop table student；//删除学生表，让学生表彻底消失
（2）
create table s (
sno varchar2(10) not null ,
sname varchar2(50) ,
status number(4) ,
city varchar2(20) ,
primary key (sno)
) ;
create table p (
pno varchar2(10) not null ,
pname varchar2(50),
color varchar2(10),
weight number(4),
primary key (pno)
) ;
create table j (
jno varchar2(10) not null ,
jname varchar2(50) ,
city varchar2(20) ,
primary key(jno)
) ;
create table spj (
sno varchar2 (10) not null ,
pno varchar2 (10) not null ,
jno varchar2 (10) not null ,
qty number(8) ,
primary key (sno,pno,jno),
foreign key (sno) references s(sno), //外键约束
foreign key (pno) references p(pno), //外键约束
foreign key (jno) references j(jno) //外键约束
);
insert into s(sno, sname, status, city)
values('s1','精益',20,'天津');
insert into s(sno, sname, status, city)
values('s2','盛锡',10,'北京');
insert into s(sno, sname, status, city)
values('s3','东方红',30,'北京');
insert into s(sno, sname, status, city)
values('s4','丰泰盛',20,'天津');
insert into s(sno, sname, status, city)
values('s5','为民',30,'上海');
insert into p(pno, pname, color, weight)
values('p1','螺母','红',12);
insert into p(pno, pname, color, weight)
values('p2','螺栓','绿',17);
insert into p(pno, pname, color, weight)
values('p3','螺丝刀','蓝',14);
insert into p(pno, pname, color, weight)
values('p4','螺丝刀','红',14);
insert into p(pno, pname, color, weight)
values('p5','凸轮','蓝',40);
insert into p(pno, pname, color, weight)
values('p6','齿轮','红',30);
insert into j(jno, jname, city)
values('j1','三建','北京');
insert into j(jno, jname, city)
values('j2','一气','长春');
insert into j(jno, jname, city)
values('j3','弹簧厂','天津');
insert into j(jno, jname, city)
values('j4','造船厂','天津');
insert into j(jno, jname, city)
values('j5','机床厂','唐山');
insert into j(jno, jname, city)
values('j6','无线电厂','常州');
insert into j(jno, jname, city)
values('j7','半导体厂','南京');
insert into spj(sno, pno, jno, qty)
values('s1','p1','j1',200);
insert into spj(sno, pno, jno, qty)
values('s1','p1','j3',100);
insert into spj(sno, pno, jno, qty)
values('s1','p1','j4',700);
insert into spj(sno, pno, jno, qty)
values('s1','p2','j2',100);
insert into spj(sno, pno, jno, qty)
values('s2','p3','j1',400);
insert into spj(sno, pno, jno, qty)
values('s2','p3','j2',200);
insert into spj(sno, pno, jno, qty)
values('s2','p3','j4',500);
insert into spj(sno, pno, jno, qty)
values('s2','p3','j5',400);
insert into spj(sno, pno, jno, qty)
values('s2','p5','j1',400);
insert into spj(sno, pno, jno, qty)
values('s2','p5','j2',100);
insert into spj(sno, pno, jno, qty)
values('s3','p1','j1',200);
insert into spj(sno, pno, jno, qty)
values('s3','p3','j1',200);
insert into spj(sno, pno, jno, qty)
values('s4','p5','j1',100);
insert into spj(sno, pno, jno, qty)
values('s4','p6','j3',300);
insert into spj(sno, pno, jno, qty)
values('s4','p6','j4',200);
insert into spj(sno, pno, jno, qty)
values('s5','p2','j4',100);
insert into spj(sno, pno, jno, qty)
values('s5','p3','j1',200);
insert into spj(sno, pno, jno, qty)
values('s5','p6','j2',200);
insert into spj(sno, pno, jno, qty)
values('s5','p6','j4',500);插入可以简化为
insert into spj values('s5','p6','j4',500);