Oracle建表及新增資料

2021-08-17 16:10:10 字數 4993 閱讀 3922

--建表

--student表+注釋

create

table student(

sno varchar2(3) not

null,

sname varchar2(9) not

null,

s*** varchar2(3) not

null,

sbirthday date,

sclass varchar2(5),

constraint pk_student primary

key(sno)

);comment on column student.sno is '學號(主鍵)';

comment on column student.sname is '學生姓名';

comment on column student.s*** is '學生性別';

comment on column student.sbirthday is '學生出生年月日';

comment on column student.sclass is '學生所在班級';

--course表+注釋

create

table course(

cno varchar2(5) not

null,

cname varchar2(15) not

null,

tno varchar2(3) not

null,

constraint pk_course primary

key(cno)

);comment on column course.cno is '課程編號(主鍵)';

comment on column course.cname is '課程名稱';

comment on column course.tno is '教工編號(外來鍵)';

--score表+注釋

create

table score(

sno varchar2(3) not

null,

cno varchar2(5) not

null,

degree number(4,1),

constraint pk_score primary

key(sno,cno)

);comment on column score.sno is '學號(主鍵)';

comment on column score.cno is '課程編號(主鍵)';

comment on column score.degree is '成績';

--teacher表+注釋

create

table teacher(

tno varchar2(3) not

null,

tname varchar2(9) not

null,

t*** varchar2(3) not

null,

tbirthday date,

prof varchar2(9),

depart varchar2(15) not

null,

constraint pk_teacher primary

key(tno)

);comment on column teacher.tno is '教工編號(主鍵)';

comment on column teacher.tname is '教工姓名';

comment on column teacher.t*** is '教工性別';

comment on column teacher.tbirthday is '教工出生年月';

comment on column teacher.prof is '職稱';

comment on column teacher.depart is '教工所在單位';

--新增外來鍵

alter

table course add

constraint fk_tno foreign

key(tno) references teacher(tno);

alter

table score add

constraint fk_sno foreign

key(sno) references student(sno);

alter

table score add

constraint fk_cno foreign

key(cno) references course(cno);

--新增資料

--student表

insert

into student(sno,sname,s***,sbirthday,sclass) values(108,'曾華','男',to_date('1977-09-01','yyyy-mm-dd'),95033);

insert

into student(sno,sname,s***,sbirthday,sclass) values(105,'匡明','男',to_date('1975-10-02','yyyy-mm-dd'),95031);

insert

into student(sno,sname,s***,sbirthday,sclass) values(107,'王麗','女',to_date('1976-01-23','yyyy-mm-dd'),95033);

insert

into student(sno,sname,s***,sbirthday,sclass) values(101,'李軍','男',to_date('1976-02-20','yyyy-mm-dd'),95033);

insert

into student(sno,sname,s***,sbirthday,sclass) values(109,'王芳','女',to_date('1975-02-10','yyyy-mm-dd'),95031);

insert

into student(sno,sname,s***,sbirthday,sclass) values(103,'陸君','男',to_date('1974-06-03','yyyy-mm-dd'),95031);

--teacher表

insert

into teacher(tno,tname,t***,tbirthday,prof,depart) values(804,'李誠','男',to_date('1958/12/02','yyyy-mm-dd'),'副教授','計算機系');

insert

into teacher(tno,tname,t***,tbirthday,prof,depart) values(856,'張旭','男',to_date('1969/03/12','yyyy-mm-dd'),'講師','電子工程系');

insert

into teacher(tno,tname,t***,tbirthday,prof,depart) values(825,'王萍','女',to_date('1972/05/05','yyyy-mm-dd'),'助教','計算機系');

insert

into teacher(tno,tname,t***,tbirthday,prof,depart) values(831,'劉冰','女',to_date('1977/08/14','yyyy-mm-dd'),'助教','電子工程系');

--course表(新增外來鍵後要先填teacher表中資料去滿足外來鍵約束)

insert

into course(cno,cname,tno) values('3-105','計算機導論',825);

insert

into course(cno,cname,tno) values('3-245','作業系統',804);

insert

into course(cno,cname,tno) values('6-166','數位電路',856);

insert

into course(cno,cname,tno) values('9-888','高等數學',831);

--score表(新增外來鍵後要先填student,course表中資料去滿足外來鍵約束)

insert

into score(sno,cno,degree) values(103,'3-245',86);

insert

into score(sno,cno,degree) values(105,'3-245',75);

insert

into score(sno,cno,degree) values(109,'3-245',68);

insert

into score(sno,cno,degree) values(103,'3-105',92);

insert

into score(sno,cno,degree) values(105,'3-105',88);

insert

into score(sno,cno,degree) values(109,'3-105',76);

insert

into score(sno,cno,degree) values(101,'3-105',64);

insert

into score(sno,cno,degree) values(107,'3-105',91);

insert

into score(sno,cno,degree) values(108,'3-105',78);

insert

into score(sno,cno,degree) values(101,'6-166',85);

insert

into score(sno,cno,degree) values(107,'6-166',79);

insert

into score(sno,cno,degree) values(108,'6-166',81);

sql建表及新增資料

建表語句 create table schema name.table name data dt varchar2 8 prdu code1 varchar2 20 prdu name1 varchar2 10 還可以加很多字段進來 可以使用excel批量生成上邊的 字段 字段型別 tablespa...

向表中新增資料

新增資料 1.所有欄位都插入 insert into student values a001 張三 男 01 5月 05 10 oracle中預設的日期格式 dd mon yy dd 日子 天 mon 月份 要加上漢字 月 不然報錯 yy 2位的年 如 09 6月 99 代表1999年6月9號 2....

ORACLE建表空間及使用者

檢查自己的身份是否是sysdba sql show user user is sys 如果不是,使用 sql sqlplus nolog sql conn as sysdba 一 sql create user 使用者名稱 default tablespace 表空間名 identified by ...