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Oracle建库流程例子

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Release: 2016-06-07 17:01:39
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sqlplus system/system@orcl --连接SQLgt;ed a --创建sql文本SQLgt;get a --把a.sql载入缓存SQLgt;/create temporary tabl

sqlplus system/system@orcl  --连接

SQL>ed a  --创建sql文本
SQL>get a  --把a.sql载入缓存
SQL>/

create temporary tablespace sa_temp  --临时表空间
tempfile 'E:\dbf\sa_temp.dbf'
size 10m
autoextend on;

create tablespace sa_space --表空间
logging
datafile 'E:\dbf\sa_space.dbf'
size 20m --20M
autoextend on; --自动增长


create user sa identified by sa --创建用户 使用对应的表空间
default tablespace sa_space
temporary tablespace sa_temp;


grant connect,resource,dba to sa; --授予连接 、dba权限给用户


conn sa/sa    --角色sa


--创建学员信息表
create table studentInfo(
stuId number primary key not null,
tel nvarchar2(15),
sex char(2) not null,
schoolTime date not null,
email nvarchar2(50) not null,
remark nvarchar2(500) not null
);


--创建课程表
create table Course(
courseId number primary key not null,
courseCode nvarchar2(15),   --课程代码
courseName nvarchar2(50)
);


--创建学员与课程关系表(多对多)
create table stdent_course(
courseId number not null,
stuId number not null
);


--创建序列
create sequence seq_studentInfo_stuId  --学员序列
 increment by 1       -- 每次加1
     start with 1     -- 从1开始计数 
     nomaxvalue       -- 不设置最大值 
     nocycle          -- 一直累加,,不循环 
     nocache          -- 不建缓冲区


create sequence seq_course_courseId    --课程序列
 increment by 1       -- 每次加1
     start with 1     -- 从1开始计数 
     nomaxvalue       -- 不设置最大值 
     nocycle          -- 一直累加,不循环 
     nocache          -- 不建缓冲区

--创建触发器
create or replace trigger tri_studentInfo_stuId  --学员主键自增
before
insert on studentInfo for each row
begin
select seq_studentInfo_stuId.nextval into :New.stuId from dual;
end;


create or replace trigger tri_course_courseId    --课程主键自增
before
insert on course for each row
begin
select seq_course_courseId.nextval into :New.courseId from dual;
end;

--建立课程表主外建关系
alter table stdent_course add constraint fk_stdentcourse_courseId
 foreign key(courseId) references course(courseId);

--建立学员主外建关系
alter table stdent_course add constraint fk_stdentcourse_courseId
 foreign key(stuId) references studentId(stuId);


--sql测试
insert into studentinfo(tel,sex,schooltime,email,remark)
values('123456','男',to_date('2011-01-12','yyyy-MM-dd'),'ss@ww.com','爱是刚');
insert into studentinfo(tel,sex,schooltime,email,remark)
values('111111','男',to_date('2011-02-12','yyyy-MM-dd'),'ss1@ww.com','爱是刚111');

insert into course(coursecode,coursename)values('001','语文');
insert into course(coursecode,coursename)values('002','数学');

insert into stdent_course (stuid,courseid)values(1,1);
insert into stdent_course (stuid,courseid)values(1,2);
insert into stdent_course (stuid,courseid)values(2,1);

select * from studentinfo;
select * from course;
select * from stdent_course;

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