mysql中文乱码产生原因和解决办法
一、乱码产生原因
mysql字符编码是版本4.1引入的,支持多国语言,而且一些特性已经超过了其他的数据库系统。可以在MySQL Command Line Client 下输入如下命令查看mysql的字符集
mysql> SHOW CHARACTER SET;
+----------+-----------------------------+---------------------+--------+
| Charset | Description | Default collation | Maxlen |
+----------+-----------------------------+---------------------+--------+
| big5 | Big5 Traditional Chinese | big5_chinese_ci | 2 |
| dec8 | DEC West European | dec8_swedish_ci | 1 |
| cp850 | DOS West European | cp850_general_ci | 1 |
| hp8 | HP West European | hp8_english_ci | 1 |
| koi8r | KOI8-R Relcom Russian | koi8r_general_ci | 1 |
| latin1 | cp1252 West European | latin1_swedish_ci | 1 |
| latin2 | ISO 8859-2 Central European | latin2_general_ci | 1 |
| swe7 | 7bit Swedish | swe7_swedish_ci | 1 |
| ascii | US ASCII | ascii_general_ci | 1 |
| ujis | EUC-JP Japanese | ujis_japanese_ci | 3 |
| sjis | Shift-JIS Japanese | sjis_japanese_ci | 2 |
| hebrew | ISO 8859-8 Hebrew | hebrew_general_ci | 1 |
| tis620 | TIS620 Thai | tis620_thai_ci
相关文档：
背景：某个系统的mysql数据库dnname采用默认的latin1字符集，系统升级需要将所有数据转换成utf-8格式，目标数据库为newdbname(建库时使用utf8)
方法一：
步骤一 命令行执行：mysqldump --opt -hlocalhost -uroot -p*** --default-character-set=lantin1 dbname > /usr/local/dbname.sql
步骤二 将 dbname.s ......
启动：net start mySql;
进入：mysql -u root -p/mysql -h localhost -u root -p databaseName;
列出数据库：show databases;
选择数据库：use databaseName;
列出表格：show tables；
显示表格列的属性：show columns from tableName；
建立数据库：source fileNa ......
I found a solution to anyone else who may be having this problem.
First start mysql using skip grant tables
root@ns1 [/var/lib/mysql/mysql]# service mysql start --skip-grant-tables
Starting MySQL [ OK ]
now with mysql started, you can repair the mysql/user table
root@ns1 [/var/lib/mysql ......
这几天所作的工作涉及到数据库行转列的问题
记录一下出现的错误，以免以后再犯
举网上最通俗的例子吧
Name Subject Result
张三 语文 80
张三 数学 90
张三 物理 &n ......
所以除了给账户权限以外 还有修改 /etc/mysql/my.cnf
找到 bind-address = 127.0.0.1 修改为 bind-address = 0.0.0.0
重启mysql : sudo /etc/init.d/mysql restart
否则会报 ERROR 2003 (HY000): Can't connect to MySQL server on 'x.x.x.x' (111)
好吧 我是mysql菜鸟 以前都是走localhost的
......
