请帮我看看一段数据库管理的代码为何无效
<?php<br />
$dbcon = mysql_connect("localhost","××××","×××××");<br />
if(!$dbcon)<br />
{<br />
die('could not connect: ' . mysql_error());<br />
}<br />
echo "mysql connected\n";<br />
mysql_query("CREATE DATABASE soap_calc",$dbcon);<br />
mysql_select_db("soap_calc",$dbcon);<br />
$sql = "CREATE TABLE oils<br />
(<br />
ID int NOT NULL AUTO_INCREMENT,<br />
CN_Name varchar(15),<br />
EN_Name varchar(30),<br />
SAP decimal(5,3),<br />
SAP_NaOH decimal(5,3),<br />
Non_Sapon decimal(5,3),<br />
Iodine decimal(10,3),<br />
PRIMARY KEY (ID)<br />
)";<br />
mysql_query($sql,$dbcon);<br />
<br />
//read items from file<br />
$file = fopen("oiltable", "r");<br />
while(!feof($file))<br />
{<br />
fscanf($file,"%s %s %s %s %s \n",$CNN,$ENN,$NAOH,$KOH,$INS);<br />
mysql_query("INSERT INTO oils (CN_Name,EN_Name,SAP,SAP_NaOH)<br />
VALUES ('$CNN','$ENN','$KOH','$NAOH')");<br />
}<br />
mysql_close($dbcon);<br />
echo "db finished\n";<br />
?>
