Modify encoding format]
| Modify the database encoding |
ALTER database database_test character set utf8; |
| Modify the database table coding |
ALTER table table_test character set utf8; |
[External databases easily solve the garbage problem]
SET NAMES 'utf8';
It is equivalent to the following three instructions:
SET character_set_client = utf8;
SET character_set_results = utf8;
SET character_set_connection = utf8;
Create a database
mysql> create database name character set utf8;
Create a table
CREATE TABLE `type` (
`id` int(10) unsigned NOT NULL auto_increment,
`name` varchar(50) character set utf8 NOT NULL default '',
PRIMARY KEY (`id`)
) DEFAULT CHARSET=utf8;
Modify the database to utf8.
mysql> alter database name character set utf8;
Modify the default table with utf8.
mysql> alter table type character set utf8;
Modify the field with utf8
mysql> alter table type modify type_name varchar(50) CHARACTER SET utf8;
[Garbled] internal database
1. Modify the database configuration file (vi /etc/my.cnf)
- plus three lines at [mysqld] tab
default-character-set = utf8
character_set_server = utf8
lower_case_table_names = 1 // table names are case insensitive (this independent encoding)
- Add a line at [MySQL] tab
default-character-set = utf8
- Add a line at [the mysql.server] tab
default-character-set = utf8
- Add a line at [the mysqld_safe] tab
default-character-set = utf8
- Add a line at [client] tab
default-character-set = utf8
2. Restart the database service
3. Review the results set
show variables like "%char%";
show variables like "%collation%";