1. Check to see over MySQL (mariadb version, if installed, uninstall, then install) Installation
Command: rpm -qa | grep -i mariadb -i to ignore case
2. Uninstall MySQL; --nodeps exclude dependence, or other software relies mysql, can not be deleted
Command: rpm -e --nodeps mariadb-libs
3. Install the MySQL client and server
The installation program copied to the directory / opt.
MySQL-server-5.5.54-1.linux2.6.x86_64.rpm
MySQL-client-5.5.54-1.linux2.6.x86_64.rpm
3.1 Install Client
3.2 server installation
4. Check whether the installation is successful, it is necessary to increase the -i do not case sensitive, otherwise not search.
5. Start mysql, and view status
6. The default root account has no password
7. Change Password / usr / bin / mysqladmin -u root password 'your password'
8. latin1 default character encoding is not supported Chinese
show variables like 'character%';
9. Set utf8 character encoding, support for Chinese
Modify my.cnf
Copy in / usr / share / mysql / my-huge.cnf directory to / etc / my.cnf and rename the file name (Music Videos)
Then modify the my.cnf:
[client]
default-character-set=utf8
[mysqld]
character_set_server=utf8
character_set_client=utf8
collation-server=utf8_general_ci
[mysql]
default-character-set=utf8
10. Restart mysql
service mysql restart
But the setting does not change the original library, parameter changes take effect only for new database
已生成的库表字符集如何变更
修改数据库的字符集
mysql> alter database mydb character set 'utf8';
修改数据表的字符集
mysql> alter table mytbl convert to character set 'utf8';
但是原有的数据如果是用非'utf8'编码的话，数据本身不会发生改变。
11.使用账户密码从任何主机连接到MySQL服务器----授权法(前提是开放了数据库的端口)
GRANT ALL PRIVILEGES ON . TO ‘myuser’@’%’ IDENTIFIED BY ‘mypassword’ WITH GRANT OPTION;