MySQL乱码问题及字符集实战
mysql> create database oldboy;
Query OK, 1 row affected (0.01 sec)
mysql>
mysql>
mysql> show create database oldboy\G;
*************************** 1. row ***************************
Database: oldboy
Create Database: CREATE DATABASE `oldboy` /*!40100 DEFAULT CHARACTER SET utf8 */
1 row in set (0.00 sec)
ERROR:
No query specified
mysql> create table students (id int(4) not null auto_increment,name char(20) not null,primary key (`id`));
Query OK, 0 rows affected (0.06 sec)
mysql> select * from students;
+----+-------+
| id | name |
+----+-------+
| 1 | alex |
| 2 | simon |
| 3 | ys |
| 5 | ?? |
| 6 | ??? |
+----+-------+
5 rows in set (0.00 sec)
mysql> set names utf8;
Query OK, 0 rows affected (0.00 sec)
mysql> select * from students;
+----+-----------+
| id | name |
+----+-----------+
| 1 | alex |
| 2 | simon |
| 3 | ys |
| 5 | 永三 |
| 6 | 李永三 |
+----+-----------+
5 rows in set (0.00 sec)
mysql> select * from students;
+----+-------+
| id | name |
+----+-------+
| 1 | alex |
| 2 | simon |
| 3 | ys |
| 5 | ?? |
| 6 | ??? |
+----+-------+
5 rows in set (0.00 sec)
mysql> insert into students values(7,'李永三');
Query OK, 1 row affected (0.05 sec)
mysql> select * from students;
+----+-----------+
| id | name |
+----+-----------+
| 1 | alex |
| 2 | simon |
| 3 | ys |
| 5 | ?? |
| 6 | ??? |
| 7 | 李永三 |
+----+-----------+
6 rows in set (0.00 sec)
mysql> show create database oldboy;
+----------+-----------------------------------------------------------------+
| Database | Create Database |
+----------+-----------------------------------------------------------------+
| oldboy | CREATE DATABASE `oldboy` /*!40100 DEFAULT CHARACTER SET utf8 */ |
+----------+-----------------------------------------------------------------+
1 row in set (0.00 sec)
mysql> show create table students\G;
*************************** 1. row ***************************
Table: students
Create Table: CREATE TABLE `students` (
`id` int(4) NOT NULL AUTO_INCREMENT,
`name` char(20) NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=8 DEFAULT CHARSET=utf8
1 row in set (0.00 sec)
不乱码的思想：建议中英文混合的环境选择utf8
Linux：
[yongsan@yz3110 mysqldump]$ cat /etc/sysconfig/i18n
LANG="en_US.UTF-8"
SYSFONT="latarcyrheb-sun16"
客户端
临时：
mysql> set names utf8;
或更改mysql.cnf的配置参数，永久生效：
[yongsan@yz3110 ~]$ cat /usr/local/mysql55/start/my.cnf |grep set
character-set-server = utf8
character_set_client = utf8
服务器
更改mysql.cnf的参数
[mysqld]
character-set-server = utf8
character_set_client = utf8
库、表、程序字符集
mysql> create database ys default character set utf8;
Query OK, 1 row affected (0.03 sec)
最新文章
- BZOJ1598: [Usaco2008 Mar]牛跑步
- el captain设置环境变量
- POJ1229 域名匹配
- 3xian之所在(转)
- UVa 11714 - Blind Sorting
- Asp.Net获取IP的方法
- opencv学习之旅_绘制跟踪轨迹
- Hive入门之UDFS函数
- JavaWeb（三）JSP之3个指令、6个动作、9个内置对象和4大作用域
- Flask入门之结构重组（瘦身）-第13讲笔记
- phpcms的一些问题 乱码,安装
- [VS] - "包含了重复的“Content”项。.NET SDK 默认情况下包括你项目中的“Content”项。
- Flask源码阅读-第四篇(flask\app.py)
- WebSocket 启用压缩
- windows10密钥激活方法
- 38. CentOS-6.3安装配置Tomcat-7
- IHttpModule理解-知识补充
- imx6dl uboot 移植
- Ubuntu下单网卡多IP地址的配置
- 【BZOJ2879】[Noi2012]美食节 动态加边网络流