选择嵌套到更新中

Question

我有以下表格：

mysql> describe clubes;
+------------+--------------+------+-----+---------+-------+
| Field      | Type         | Null | Key | Default | Extra |
+------------+--------------+------+-----+---------+-------+
| ClubNum    | int(11)      | YES  |     | NULL    |       |
| Club       | varchar(100) | YES  |     | NULL    |       |
| Fundación  | date         | YES  |     | NULL    |       |
| Provincia  | varchar(50)  | YES  |     | NULL    |       |
| Ciudad     | varchar(100) | YES  |     | NULL    |       |
| Ganados    | tinyint(100) | YES  |     | NULL    |       |
+------------+--------------+------+-----+---------+-------+
6 rows in set (0.01 sec)

mysql> describe invictos;
+----------------------+--------------+------+-----+---------+-------+
| Field                | Type         | Null | Key | Default | Extra |
+----------------------+--------------+------+-----+---------+-------+
| ClubId               | int(11)      | YES  |     | NULL    |       |
| Club                 | varchar(100) | YES  |     | NULL    |       |
| Campeonatos Invictos | tinyint(100) | YES  |     | NULL    |       |
+----------------------+--------------+------+-----+---------+-------+
3 rows in set (0.00 sec)

我想要运行如下内容：

UPDATE invictos SET ClubId = ( SELECT ClubNum FROM clubes WHERE Club = "San Lorenzo") WHERE invictos.Club = "Chacarita Juniors";

但什么也没做，但如果我删除了＆＃39; WHERE invictos.Club =＆＃34; Chacarita Juniors＆＃34;＆＃39;部分更新每一行，为什么它不起作用？

请记住clubes.ClubNum = invictos.ClubId

我该怎么做？

提前致谢！