Mysql数据库默认编码
查看使用的编码
1. 使用status查看
mysql> status
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mysql Ver 14.14 Distrib 5.6.44, for Linux (x86_64) using EditLine wrapper
Connection id: 22
Current database:
Current user: root@localhost
SSL: Not in use
Current pager: stdout
Using outfile: ''
Using delimiter: ;
Server version: 5.6.44 MySQL Community Server (GPL)
Protocol version: 10
Connection: Localhost via UNIX socket
Server characterset: latin1
Db characterset: latin1
Client characterset: utf8
Conn. characterset: utf8
UNIX socket: /var/run/mysqld/mysqld.sock
Uptime: 6 hours 31 min 31 sec
Threads: 1 Questions: 905 Slow queries: 1 Opens: 74 Flush tables: 1 Open tables: 67 Queries per second avg: 0.038
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Server characterset: latin1 Db characterset: latin1 (数据库编码格式) Client characterset: utf8 (客户端连接进来的编码格式) Conn. characterset: utf8 (接入的编码格式)
2. 使用show variables
show variables like 'character'
mysql> show variables like 'character%';
+--------------------------+----------------------------+
| Variable_name | Value |
+--------------------------+----------------------------+
| character_set_client | utf8 |
| character_set_connection | utf8 |
| character_set_database | latin1 |
| character_set_filesystem | binary |
| character_set_results | utf8 |
| character_set_server | latin1 |
| character_set_system | utf8 |
| character_sets_dir | /usr/share/mysql/charsets/ |
+--------------------------+----------------------------+
/etc/my.cnf文件中修改配置信息
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使用默认的配置信息
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本机访问自己的数据库:Server characterset: latin1
status
Server characterset: latin1 Db characterset: latin1 Client characterset: utf8 Conn. characterset: utf8show variables like 'character%'
+--------------------------+----------------------------+ | Variable_name | Value | +--------------------------+----------------------------+ | character_set_client | utf8 | | character_set_connection | utf8 | | character_set_database | latin1 | | character_set_filesystem | binary | | character_set_results | utf8 | | character_set_server | latin1 | | character_set_system | utf8 | | character_sets_dir | /usr/share/mysql/charsets/ | +--------------------------+----------------------------+创建一个数据库encodtest,查看其编码信息
Server characterset: latin1 Db characterset: latin1 Client characterset: utf8 Conn. characterset: utf8mysql> show variables like 'character%'; +--------------------------+----------------------------+ | Variable_name | Value | +--------------------------+----------------------------+ | character_set_client | utf8 | | character_set_connection | utf8 | | character_set_database | latin1 | | character_set_filesystem | binary | | character_set_results | utf8 | | character_set_server | latin1 | | character_set_system | utf8 | | character_sets_dir | /usr/share/mysql/charsets/ | +--------------------------+----------------------------+character_set_database是数据库的编码格式
创建一个test表查看其默认的编码格式
show create table test;
+-------+------------------------------- | Table | Create Table | +-------+------------------------------- | test | CREATE TABLE `test` ( `id` int(11) NOT NULL, PRIMARY KEY (`id`) ) ENGINE=InnoDB DEFAULT CHARSET=latin1 | +-------+-------------------------------DEFAULT CHARSET=latin1默认的编码格式是latin1,与数据库编码格式相同
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更改配置文件/etc/my.cnf
添加设置:
[client] default-character-set = utf8 [mysqld] character-set-server=utf8 collation-server=utf8_unicode_ci-
本机进入数据库
查看编码格式:
status
Server characterset: utf8 Db characterset: utf8 Client characterset: utf8 Conn. characterset: utf8show variables like 'char%';
+--------------------------+----------------------------+ | 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/ | +--------------------------+----------------------------+创建数据库查看其编码
与上面相同
创建表查看编码:
+-------+------------------------------------------------------ | Table | Create Table | +-------+------------------------------------------------------ | test | CREATE TABLE `test` ( `id` int(11) NOT NULL, PRIMARY KEY (`id`) ) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci | +-------+-----------------------------------------------------DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci默认的编码格式与配置相同
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