假设有一条包含300+列的SQL语句。create table if not exists ();
selectfromon a.key=b.key
; 它只会一直显示错误消息 Invalid operation: INSERT has more expressions than target columns; 因为有太多的列,所以很难找到哪一列是未匹配的有没有办法计
我正在运行一条mysql语句,尽管值不正确,但该语句的实际计算结果仍为true。Bellow是函数 $sql = "SELECT * FROM `users` WHERE `user_name`='$username' AND `user_password`='$password'";
$query = $this->link