Php 从不同的表数据更新表行无效

我的数据库中有两个表。一个名为

wp\u tickets

，另一个名为

wp\u tickets\u

如果

wp\u tickets

表中的

wp\u tickets\u重新生成的
wp\u tickets
表中的
lotkets\u id
匹配，我将尝试更新
wp\u tickets\u重新生成的
表中的一些数据，因此我最终得到了一个新表，该表为该产品下的每个订单生成了不同的ticket\u编号

到目前为止，我的代码出现了一个错误：

 WordPress database error You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'FROM wp_tickets
        WHERE lottery_id = wp_tickets.lottery_id' at line 6 for query UPDATE wp_tickets_regenerated

有人能帮忙吗

wp\u票务表

+---------+-----------+-----------+---------------+----------+------------+
| user_id | full_name | answer_id | ticket_number | order_id | lottery_id |
+---------+-----------+-----------+---------------+----------+------------+
| 0       | test      | 1         | 3             | 791      | 790        |
+---------+-----------+-----------+---------------+----------+------------+
| 0       | test      | 1         | 5             | 791      | 790        |
+---------+-----------+-----------+---------------+----------+------------+
| 0       | test      | 1         | 10            | 791      | 790        |
+---------+-----------+-----------+---------------+----------+------------+

wp\u票据重新生成

   +---------+-----------+-----------+---------------+----------+------------+
    | user_id | full_name | answer_id | ticket_number | order_id | lottery_id |
    +---------+-----------+-----------+---------------+----------+------------+
    |         |           |           | 1             |          | 790        |
    +---------+-----------+-----------+---------------+----------+------------+
    |         |           |           | 2             |          | 790        |
    +---------+-----------+-----------+---------------+----------+------------+
    |         |           |           | 3             |          | 790        |
    +---------+-----------+-----------+---------------+----------+------------+

到目前为止，我得到的是：

 $wpdb->query(
       'UPDATE wp_tickets_regenerated
        SET user_id = wp_tickets.user_id,
            full_name = wp_tickets.full_name,
            answer_id = wp_tickets.answer_id,
            order_id = wp_tickets.order_id
        FROM wp_tickets
        WHERE lottery_id = wp_tickets.lottery_id'
  );

可能您需要一个内部连接进行更新

    UPDATE wp_tickets_regenerated a 
    INNER JOIN wp_tickets b a.lottery_id = b.lottery_id
    SET a.user_id = b.user_id,
        a.full_name = b.full_name,
        a.answer_id = b.answer_id,
        a.order_id = b.order_id

（不使用更新中的from…）
您需要一个内部联接表
wp\u tickets
进行更新

    UPDATE wp_tickets_regenerated a 
    INNER JOIN wp_tickets b a.lottery_id = b.lottery_id
    SET a.user_id = b.user_id,
        a.full_name = b.full_name,
        a.answer_id = b.answer_id,
        a.order_id = b.order_id

试试这个

UPDATE wp_tickets_regenerated
INNER JOIN wp_tickets ON wp_tickets_regenerated.lottery_id = wp_tickets.lottery_id
SET wp_tickets_regenerated.user_id = wp_tickets .user_id,
    wp_tickets_regenerated.full_name = wp_tickets .full_name,
    wp_tickets_regenerated.answer_id = wp_tickets .answer_id,
    wp_tickets_regenerated.order_id = wp_tickets .order_id
WHERE wp_tickets_regenerated.lottery_id = wp_tickets.lottery_id'

希望这对您有所帮助