我正在探索MYSQL的加入,我希望你们能帮上忙。我正在尝试从sessions表中在线显示用户。我想把它和我的user表连接起来,看看用户是否有一个被禁止的显示组。我试图阻止被禁止的用户出现在查询中。='0' GROUP BY `sessions.user_id` ORDER BY id DESC LIMIT $start, $perpage");
MySQL错误:'group语句‘中未知列
我创建了一个mysql查询,以检查用户是否被禁止,以及他是否是系统,给他返回false。但它不会得到信息。LIMIT 1"; $IDbyNAME = mysql_free_result($getIdBYname);
$queryforban = mysql_query("SELECT * FROM bans WHERE data
Warning: mysqli_connect(): (HY000/1130): Host '123.202.164.45' is not allowed to connect to this MySQLserver in /Applications/XAMPP/xamppfiles/htdocs/data.php on line 16
Failed to connect to MySQL: Host'123.202.164.45' is not allowe