目前我们在PHP中使用以下命令在应用程序中将字符集设置为UTF-8。
因为这有点开销，所以我们希望将其设置为MySQL中的默认设置。我们可以在/etc/my.cnf或其他位置这样做吗?
SET NAMES 'utf8'
SET CHARACTER SET utf8
我在/etc/my.cnf中寻找了一个默认字符集，但那里没有关于字符集的任何内容。
在这一点上，我做了以下设置MySQL字符集和排序变量为UTF-8:
skip-character-set-client-handshake
character_set_client=utf8
character_set_server=utf8
这是正确的处理方式吗?
当前回答
更改MySQL字符:
客户端
default-character-set=utf8
mysqld
character_set_server=utf8
我们不应该在mysqld中编写default-character-set=utf8，因为这可能会导致如下错误:
start:任务启动失败
最后:
+--------------------------+----------------------------+
| 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 | /usr/share/mysql/charsets/ |
+--------------------------+----------------------------+
其他回答
要将默认值设置为UTF-8，您需要将以下内容添加到my.cnf/my.ini
[client]
default-character-set=utf8mb4
[mysql]
default-character-set=utf8mb4
[mysqld]
collation-server = utf8mb4_unicode_520_ci
init-connect='SET NAMES utf8mb4'
character-set-server = utf8mb4
如果您想更改现有数据库的字符集，请告诉我…你的问题没有直接说明，所以我不确定这是否是你想要做的。
编辑:我在原始答案中用utf8mb4替换了utf8，因为utf8只是UTF-8的一个子集。MySQL和MariaDB都调用UTF-8 utf8mb4。
如果你对客户端的设置感到困惑，重启mysql服务后conn被重置。试试下面这些步骤(对我很有效):
vi /etc/my.cnf 添加内容:blow和:wq (客户端) character-sets-dir = / usr /地方/ mysql /分享/ mysql /数据集 重启mysql，登录mysql，使用数据库，输入命令状态;，你会发现'client'和'conn'的字符集被设置为'utf8'。
查看参考资料了解更多信息。
在Xubuntu 12.04下，我简单地添加了
[mysqld]
character_set_server = utf8
到 /etc/mysql/my.cnf
结果是
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 | /usr/share/mysql/charsets/ |
+--------------------------+----------------------------+
8 rows in set (0.00 sec)
+----------------------+-----------------+
| Variable_name | Value |
+----------------------+-----------------+
| collation_connection | utf8_general_ci |
| collation_database | utf8_general_ci |
| collation_server | utf8_general_ci |
+----------------------+-----------------+
3 rows in set (0.00 sec)
也可以看看http://dev.mysql.com/doc/refman/5.6/en/charset-server.html
对于MySQL的最新版本，
default-character-set = utf8
造成问题。我认为这是不可取的。
正如Justin Ball在“升级到MySQL 5.5.12，现在MySQL无法启动，你应该:
Remove that directive and you should be good. Then your configuration file ('/etc/my.cnf' for example) should look like that: [mysqld] collation-server = utf8_unicode_ci init-connect='SET NAMES utf8' character-set-server = utf8 Restart MySQL. For making sure, your MySQL is UTF-8, run the following queries in your MySQL prompt: First query: mysql> show variables like 'char%'; The output should look like: +--------------------------+---------------------------------+ | 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 | /usr/local/mysql/share/charsets/| +--------------------------+---------------------------------+ Second query: mysql> show variables like 'collation%'; And the query output is: +----------------------+-----------------+ | Variable_name | Value | +----------------------+-----------------+ | collation_connection | utf8_general_ci | | collation_database | utf8_unicode_ci | | collation_server | utf8_unicode_ci | +----------------------+-----------------+
你可以这样做，如果它不工作，你需要重新启动mysql。
