图书管理程序（一）

本级程序所用的数据表结构：
# --------------------------------------------------------
#
# 数据表的结构 'author'
#

create table author (
   author_id int(6) default '0' not null auto_increment,
   first_name varchar(20) binary not null,
   last_name varchar(20) not null,
   address varchar(100) binary not null,
   zipcode varchar(10) not null,
   telephone varchar(10) not null,
   email varchar(50) not null,
   comment varchar(255) not null,
   primary key (author_id),
   key first_name (first_name),
   key last_name (last_name),
   key address (address),
   key zipcode (zipcode),
   key email (email)
);

# --------------------------------------------------------
#
# 数据表的结构 'books'
#

create table books (
   books_id int(6) default '0' not null auto_increment,
   books_name varchar(100) binary not null,
   publisher_id varchar(6) not null,
   date_pub datetime default '0000-00-00 00:00:00' not null,
   type varchar(6) not null,
   pages varchar(4) not null,
   price float(6,2) default '0.00' not null,
   comment varchar(255) binary not null,
   isbn varchar(25) not null,
   primary key (books_id),
   key name (books_name),
   key publisher (publisher_id),
   key date_pub (date_pub),
   key price (price),
   key pages (pages),
   key type (type),
   key isbn (isbn)
);
# --------------------------------------------------------
#
# 数据表的结构 'books_author'
#

create table books_author (
   id int(6) default '0' not null auto_increment,
   books_id varchar(6) not null,
   author_id varchar(6) not null,
   author_type varchar(6) not null,
   primary key (id)
);

# --------------------------------------------------------
#
# 数据表的结构 'publisher'
#

create table publisher (
   publisher_id int(6) default '0' not null auto_increment,
   publisher_name varchar(100) binary not null,
   address varchar(100) not null,
   zipcode varchar(10) not null,
   telephone varchar(10) not null,
   telefax varchar(10) not null,
   email varchar(50) not null,
   primary key (publisher_id),
   key name (publisher_name),
   key address (address),
   key email (email)
);