mysql - 在AWS RDS上将MySQL服务器变量collat​​ion_connection设置为utf8_unicode_ci

Question

所以我的目标是将所有字符集和排序规则设置为utf8和utf8_unicode_ci。

我正在使用AWS RDS托管MySQL服务器。

我已经在RDS的“参数”组中将collation_connection variable设置为utf8_unicode_ci。

。

Ive然后重新启动了我的RDS，当进入MySQL控制台时，它会显示以下变量值。

mysql> show variables like "%character%";show variables like "%collation%";
+--------------------------+-------------------------------------------+
| Variable_name            | Value                                     |
+--------------------------+-------------------------------------------+
| character_set_client     | utf8                                      |
| character_set_connection | utf8                                      |
| character_set_database   | utf8                                      |
| character_set_filesystem | binary                                    |
| character_set_results    | utf8                                      |
| character_set_server     | utf8                                      |
| character_set_system     | utf8                                      |
| character_sets_dir       | /rdsdbbin/mysql-5.6.22.R1/share/charsets/ |
+--------------------------+-------------------------------------------+
8 rows in set (0.01 sec)

+----------------------+-----------------+
| Variable_name        | Value           |
+----------------------+-----------------+
| collation_connection | utf8_general_ci |
| collation_database   | utf8_unicode_ci |
| collation_server     | utf8_unicode_ci |
+----------------------+-----------------+

我不确定为什么将 collation_connection设置为 utf8_general_ci

Answer 1

您在此处看到的变量是当前客户端 session 的变量:

+----------------------+-----------------+
| Variable_name        | Value           |
+----------------------+-----------------+
| collation_connection | utf8_general_ci |
| collation_database   | utf8_unicode_ci |
| collation_server     | utf8_unicode_ci |
+----------------------+-----------------+

因此，在启动连接时，需要在要连接的客户端上运行以下命令:

SET collation_connection = 'utf8_unicode_ci';