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图书管理系统数据库图书管理程序（三）
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互联网集市收集整理的这篇技术教程文章主要介绍了图书管理系统数据库图书管理程序（三），小编现在分享给大家，供广大互联网技能从业者学习和参考。文章包含2244字，纯文字阅读大概需要4分钟。
内容图文
图书查询部分： if(!$UploadAction):
?>
//本程序是为输出书名，作者、出版社资料而设。
//编者：孔秀祥。日期：2001/3/25
?>
else:
session_start();
require "config.php3";
$b_price=$b_price_a.".".$b_price_b;
$UploadAction=0;
$repeat=0; //是不是重复了。
$TimeLimit=0; //设置超时限制时间缺省时间为 30秒设置为0时为不限时
set_time_limit($TimeLimit);
@MYSQL_CONNECT($hostname,$dbusername,$dbpassword) OR DIE("不能连接数据库！");
@mysql_select_db("$dbname") or die("不能选择数据库！");
//$q="select books.books_id, books.books_name,author.first_name,author.last_name,publisher.publisher_name from books,author,books_author,publisher where books.books_name="$b_name" and books.publisher_id=publisher.publisher_id and books.books_id=books_author.books_id and books_author.author_id=author.author_id";
if($b_name!="")
$bn="books.books_name="$b_name" and ";
if($p_name!="")
$pn="publisher.publisher_name="$p_name" and ";
if($a_first1!="")
$af="author.first_name="$a_first1" and ";
if($a_last1!="")
$al="author.last_name="$a_last1" and ";
if($p_year!=""){
$date_p="books.date_pub rlike '^$p_year.*' and ";
}
if($isbn!="")
$is="books.ISBN="$isbn" and ";
$q="select books.books_id, books.books_name,author.first_name,author.last_name,publisher.publisher_name from books,author,books_author,publisher
where $bn $pn $af $al $date_p $is books.publisher_id=publisher.publisher_id and books.books_id=books_author.books_id and books_author.author_id=author.author_id order by books.books_name";
$r = @mysql_query($q);
if(!$r){
echo "查询无效
";
exit;
}
if(mysql_num_rows($r)<1){
$msg="没有符合要求的记录。";
xueroom_error_exit($msg,$PHP_SELF);
}
while($count=mysql_fetch_array($r)){
$books_id=$count[0];
$books_name=$count[1];
$first_name=$count[2];
$last_name=$count[3];
$publisher_name=$count[4];
if($book!=$books_id){
$repeat++;
echo "
".$repeat."、";
echo "《".$books_name."》";
echo "出版社：".$count[4];
echo " 作者：";
}
echo "$first_name$last_name ";
$book=$books_id;
}
echo"
返回 ";
echo"