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利用新建一个表,直接把不重复的数据导入.
<?php
set_time_limit(13600); //设置时间
$conn=mysql_connect('localhost','root',''); //连接数据库
mysql_select_db('shuju',$conn);
mysql_query("set names 'gbk'");
$query = mysql_query("select min(id) as mid from taobaoguanjianci group by title");
while($row = mysql_fetch_array($query))
{
mysql_query("INSERT into taobaoguanjiancitmp select id,cid,title,cat,level3,cname from taobaoguanjianci where id=$row[mid]");
}
?>