mysql 1046错误解决实例

<?php
require_once './include/common.inc.php';

$maxpostnum = 200; //设定最小帖子数量

if(!$discuz_user || !$discuz_pw) {
        showmessage('对不起，您还没有登录，无法进行此操作。');
}

if(!$adminid ){
$query=$db->query("SELECT postnum,credit FROM bbs.cdb_members WHERE username = '$discuz_user'");
$blogaccess = $db->fetch_array($query);
        if ($blogaccess['postnum'] < $maxpostnum ){
        showmessage ('对不起，您目前的等级无开通RSS聚合服务');
        }
}

$query=$db->query("SELECT username FROM uploader.uploader_users WHERE username = '$discuz_user'");
$bloguser = $db->fetch_array($query);
        if ($action=="") {
        include template('rss_reg');       
        }
       
        if ($action == "kaihu" ){
                if (!$bloguser['user']){
                $query=$db->query("SELECT uid,username,password,email,regdate FROM bbs.cdb_members WHERE username = '$discuz_user'");
                $bloginfo = $db->fetch_array($query);
                        $db->query("INSERT INTO uploader.uploader_users (username, password, email, reg_date)
                        VALUES ('$bloginfo[username]' ,'$bloginfo[password]' ,'$bloginfo[email]' ,'$bloginfo[regdate]'");
                        $db->query("UPDATE bbs.cdb_members SET rss = 1 WHERE username = '$discuz_user'");
                showmessage('帐户开通完毕,您可以进入管理了','http://rss.twbbs.biz');
        }else {
                $db->query("UPDATE bbs.cdb_members SET rss =1 WHERE username = '$discuz_user'");
                showmessage('你的帐户已经开通','http://rss.twbbs.biz');
        }              
        }
?>