現在我們假設開發一個鐘表公司的客戶訂單系統,有客戶訂單編號,類別,名稱,數量,价格等資料,這里就不將資料一一列擊,.訂單表如下:;;
訂單編號(ID) 類別(TYPE)名稱(NAME)數量(QTY) 价格(PRICE);;
001 机芯 机芯1 100 150;;
001 表殼 表殼1 1000 60;;
001 表帶 表帶1 500 70;;
002 机芯 机芯2 200 40;;
002 表殼 表殼2 300 53;;
002表帶 表帶2 400 46;;
現在我們設想要建一個查詢系統,讓用戶即可根据訂單編號,也可根据類別,或者根据价格,或者其中的各自組合來實現快速查詢,代號如下:;;
下面此部分是顯示查詢條件的窗体;;
<html>;;
<?;;
$linkstr=mysql_connect("localhost","root","sa");;;
mysql_select_db("cx",$linkstr);;;
?>;;
<script language="JavaScript">;;
function variable();;
{;;
if (document.search.select1.value!="1");;
{;;
if (document.search.no.value=="");;
{;;
window.alert("請輸入訂單號碼!");;;
return false;;;
};;
else;;
{;;
if (document.search.type.value=="");;
{;;
window.alert("請選擇配件類別!");;;
return false;;;
};;
};;
};;
else;;
{;;
if (document.search.select2.value!="1");;
{;;
if (document.search.price.value=="");;
{;;
window.alert("請輸入价格!");;;
return false;;;
};;
};;
};;
};;
</script>;;
<br>;;
<center><font size="5"><b>多重條件組合查詢</b></font></center>;;
<br>;;
<body>;;
<form action="searchjg.php" method="POST" name="search" onsubmit="return variable(this.value)">;;
<table align="center" border="1" width="400">;;
<tr>;;
<td align="left" width="100">訂單編號</td>;;
<td align="left" width="300"><input type="text" name="no"></td>;;
</tr>;;
<tr>;;
<td align="left" width="200">;;
<select name="select1">;;
<option selected value="1">;;
<option value="2">或者;;
<option value="3">而且;;
</select>類別為;;
</td>;;
<td align="left" width="200">;;
<select name="type">;;
<option selected>;;
<?;;
$querystring="select distinct type from orders ";;;
$result=mysql_query($querystring,$linkstr);;;
while (list($type)=mysql_fetch_row($result));;
{;;
echo "<option value="$type">".$type;;;
};;
?>;;
</select>;;
</tr>;;
<tr>;;
<td>;;
<select name="select2">;;
<option selected value="1">;;
<option value="2">或者;;
<option value="3">而且;;
</select>价格位在;;
</td>;;
<td><select name="price">;;
<option selected>;;
<option value="1">50以下;;
<option value="2">50~200?;;
<option value="3">200以上;;
</select>的配件;;
</td>;;
</tr>;;
<table width="400" align="right">;;
<tr>;;
<td>;;
<input type="submit" name="submit" value="開始查詢">;;
</td>;;
</tr>;;
</table>;;
</table>;;
</form>;;
</body>;;
</html>;
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