关系数据库图书管理系统

4 数据库物理结构设计

4.1数据库创建

CREATE DATABASE

AAA

4.2 数据表的创建

4.2.1 用SQL将图书信息E-R图转换为关系模型

USE WYN GO

CREATE TABLE UserInfo (

LibNum Int NOT NULL PRIMARY KEY, Name varchar (20) NOT NULL, Sex varchar (20) NOT NULL, Type varchar (20) NOT NULL, ) GO

CREATE TABLE Book (

BoNum INT NOT NULL PRIMARY KEY, Author varchar (15) NOT NULL, BookName varchar (25) NOT NULL, Price varchar (30) NOT NULL, Press varchar (20) NOT NULL, Storage varchar (25) NOT NULL, Published varchar (30) NOT NULL, ) GO