1 --建表 2 --student表+注釋 3 create table student( 4 sno varchar2(3) not null, 5 sname varchar2(9) not null, 6 ssex varchar2(3) not null, 7 sbirthday date, 8 sclass varchar2(5), 9 constraint pk_student primary key(sno) 10 ); 11 comment on column student.sno is '學號（主鍵）'; 12 comment on column student.sname is '學生姓名'; 13 comment on column student.ssex is '學生性別'; 14 comment on column student.sbirthday is '學生出生年月日'; 15 comment on column student.sclass is '學生所在班級';


16 --course表+注釋 17 create table course( 18 cno varchar2(5) not null, 19 cname varchar2(15) not null, 20 tno varchar2(3) not null, 21 constraint pk_course primary key(cno) 22 ); 23 comment on column course.cno is '課程編號（主鍵）'; 24 comment on column course.cname is '課程名稱'; 25 comment on column course.tno is '教工編號（外鍵）';


26 --score表+注釋 27 create table score( 28 sno varchar2(3) not null, 29 cno varchar2(5) not null, 30 degree number(4,1), 31 constraint pk_score primary key(sno,cno) 32 ); 33 comment on column score.sno is '學號（主鍵）'; 34 comment on column score.cno is '課程編號（主鍵）'; 35 comment on column score.degree is '成績';


36 --teacher表+注釋 37 create table teacher( 38 tno varchar2(3) not null, 39 tname varchar2(9) not null, 40 tsex varchar2(3) not null, 41 tbirthday date, 42 prof varchar2(9), 43 depart varchar2(15) not null, 44 constraint pk_teacher primary key(tno) 45 ); 46 comment on column teacher.tno is '教工編號（主鍵）'; 47 comment on column teacher.tname is '教工姓名'; 48 comment on column teacher.tsex is '教工性別'; 49 comment on column teacher.tbirthday is '教工出生年月'; 50 comment on column teacher.prof is '職稱'; 51 comment on column teacher.depart is '教工所在單位';


52 --添加外鍵 53 alter table course add constraint fk_tno foreign key(tno) references teacher(tno); 54 alter table score add constraint fk_sno foreign key(sno) references student(sno); 55 alter table score add constraint fk_cno foreign key(cno) references course(cno);


56 --添加數據 57 --Student表 58 insert into student(sno,sname,ssex,sbirthday,sclass) values(108,'曾華','男',to_date('1977-09-01','yyyy-mm-dd'),95033); 59 insert into student(sno,sname,ssex,sbirthday,sclass) values(105,'匡明','男',to_date('1975-10-02','yyyy-mm-dd'),95031); 60 insert into student(sno,sname,ssex,sbirthday,sclass) values(107,'王麗','女',to_date('1976-01-23','yyyy-mm-dd'),95033); 61 insert into student(sno,sname,ssex,sbirthday,sclass) values(101,'李軍','男',to_date('1976-02-20','yyyy-mm-dd'),95033); 62 insert into student(sno,sname,ssex,sbirthday,sclass) values(109,'王芳','女',to_date('1975-02-10','yyyy-mm-dd'),95031); 63 insert into student(sno,sname,ssex,sbirthday,sclass) values(103,'陸君','男',to_date('1974-06-03','yyyy-mm-dd'),95031);


64 --teacher表 65 insert into teacher(tno,tname,tsex,tbirthday,prof,depart) values(804,'李誠','男',to_date('1958/12/02','yyyy-mm-dd'),'副教授','計算機系'); 66 insert into teacher(tno,tname,tsex,tbirthday,prof,depart) values(856,'張旭','男',to_date('1969/03/12','yyyy-mm-dd'),'講師','電子工程系'); 67 insert into teacher(tno,tname,tsex,tbirthday,prof,depart) values(825,'王萍','女',to_date('1972/05/05','yyyy-mm-dd'),'助教','計算機系'); 68 insert into teacher(tno,tname,tsex,tbirthday,prof,depart) values(831,'劉冰','女',to_date('1977/08/14','yyyy-mm-dd'),'助教','電子工程系');


69 --course表(添加外鍵后要先填teacher表中數據去滿足外鍵約束) 70 insert into course(cno,cname,tno) values('3-105','計算機導論',825); 71 insert into course(cno,cname,tno) values('3-245','操作系統',804); 72 insert into course(cno,cname,tno) values('6-166','數字電路',856); 73 insert into course(cno,cname,tno) values('9-888','高等數學',831);


74 --score表（添加外鍵后要先填Student，course表中數據去滿足外鍵約束） 75 insert into score(sno,cno,degree) values(103,'3-245',86); 76 insert into score(sno,cno,degree) values(105,'3-245',75); 77 insert into score(sno,cno,degree) values(109,'3-245',68); 78 insert into score(sno,cno,degree) values(103,'3-105',92); 79 insert into score(sno,cno,degree) values(105,'3-105',88); 80 insert into score(sno,cno,degree) values(109,'3-105',76); 81 insert into score(sno,cno,degree) values(101,'3-105',64); 82 insert into score(sno,cno,degree) values(107,'3-105',91); 83 insert into score(sno,cno,degree) values(108,'3-105',78); 84 insert into score(sno,cno,degree) values(101,'6-166',85); 85 insert into score(sno,cno,degree) values(107,'6-166',79); 86 insert into score(sno,cno,degree) values(108,'6-166',81);

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轉載于:https://www.cnblogs.com/ssC2H4/p/8548695.html

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