当你在Linux系统中使用MySQL命令行工具查询数据库时，如果中文显示为问号（?）或其他乱码，简单解决办法。（2）

1、问题出现

2、解决办法

mysql -u [username] -p --default-character-set=utf8 [database_name]

root@ab66508d9441:/# mysql -uroot -p123456 --default-character-set=utf8 tingshu_album
mysql: [Warning] Using a password on the command line interface can be insecure.
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -AWelcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 80
Server version: 8.0.27 MySQL Community Server - GPLCopyright (c) 2000, 2021, Oracle and/or its affiliates.Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql> select * from base_attribute;
+----+--------------+-----------------+---------------------+---------------------+------------+
| id | category1_id | attribute_name  | create_time         | update_time         | is_deleted |
+----+--------------+-----------------+---------------------+---------------------+------------+
|  1 |            2 | 有声书分类      | 2023-03-20 15:39:12 | 2023-03-20 15:39:12 |          0 |
|  2 |            2 | 播讲形式        | 2023-03-20 15:39:12 | 2023-03-20 15:39:12 |          0 |
|  3 |            2 | 是否付费        | 2023-03-20 15:39:12 | 2023-03-20 15:39:12 |          0 |
|  4 |            2 | 是否完本        | 2023-03-20 15:39:12 | 2023-03-20 15:39:12 |          0 |
|  5 |            2 | 是否新品        | 2023-03-20 15:39:12 | 2023-03-20 15:39:12 |          0 |
|  6 |           10 | 是否付费        | 2023-03-20 15:53:23 | 2023-03-20 15:53:23 |          0 |
|  7 |           10 | 是否完本        | 2023-03-20 15:53:23 | 2023-03-20 15:53:23 |          0 |
|  8 |           11 | 是否付费        | 2023-03-20 15:53:23 | 2023-03-20 15:58:02 |          0 |
|  9 |           11 | 是否完本        | 2023-03-20 15:58:02 | 2023-03-20 15:58:02 |          0 |
| 10 |            8 | 创作团体        | 2023-03-20 15:58:02 | 2023-03-20 15:58:02 |          0 |
| 11 |            8 | 是否付费        | 2023-03-20 15:58:02 | 2023-03-20 15:58:02 |          0 |
| 12 |            8 | 是否完结        | 2023-03-20 15:58:02 | 2023-03-20 15:58:02 |          0 |
| 13 |            6 | 是否付费        | 2023-03-20 16:04:13 | 2023-03-20 16:04:13 |          0 |
| 14 |            6 | 是否完结        | 2023-03-20 16:04:13 | 2023-03-20 16:04:13 |          0 |
| 15 |            5 | 适合年龄        | 2023-03-20 16:04:13 | 2023-03-20 16:04:13 |          0 |
| 16 |            5 | 是否完结        | 2023-03-20 16:04:13 | 2023-03-20 16:04:13 |          0 |
| 17 |            5 | 是否付费        | 2023-03-20 16:04:13 | 2023-03-20 16:04:13 |          0 |
| 18 |           12 | 是否付费        | 2023-03-20 16:04:13 | 2023-03-20 16:04:13 |          0 |
| 19 |           12 | 是否完结        | 2023-03-20 16:04:13 | 2023-03-20 16:04:13 |          0 |
+----+--------------+-----------------+---------------------+---------------------+------------+
19 rows in set (0.00 sec)