create table customer(	id number primary key,	name varchar2(20),	password varchar2(20),	zip varchar2(20),	address varchar2(50),	telephone varchar2(20),	email varchar2(30));create table orderform(	id number primary key,    	cost number(8,2),	orderdate date,    	customerid number references customer(id));create table book(	id number primary key,	name varchar2(100),	price number(8,2));create table orderline(	id number primary key,	num number not null,	orderid number references orderform(id),		bookid number references book(id));insert into book values(1,'JAVA核心技術(shù)',81.00);insert into book values(2,'UNIX技術(shù)手冊',21.15);insert into book values(3,'ORACLE9I參考手冊',108.00);insert into book values(4,'JSP設(shè)計(第三版)',59.25);insert into book values(5,'JAVA SERVLET 編程(第二版)',38.25);insert into book values(6,'XML 高級編程(第2版)',97.20);insert into book values(7,'精通STRUTS:基于MVC的JAVA WEB設(shè)計與開發(fā)',36.75);insert into book values(8,'精通HIBERNATE：JAVA對象持久化技術(shù)詳解',44.25);insert into book values(9,'SPRING IN ACTION中文版',29.25);insert into book values(10,'精通EJB 3.0',44.25);create sequence book_seq start with 1 increment by 1;create sequence customer_seq start with 1 increment by 1;create sequence orderform_seq start with 1 increment by 1;create sequence orderline_seq start with 1 increment by 1;