我要评论安装
mysql
sudo apt-get --purge remove mysql-server mysql-common mysql-client sudo apt-get install mysql-server mysql-common mysql-client mysqladmin -u root password your-new-password sudo /etc/init.d/mysql restart
mariadb
apt-get install mariadb-server
字符集修改utf8
如果装的mariadb, 默认字符集已经是utf8了。mysql则不是
mysql> show variables like 'char%'; +--------------------------+----------------------------+ | 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/ | +--------------------------+----------------------------+
mysql> show variables like 'collation%'; +----------------------+-------------------+ | variable_name | value | +----------------------+-------------------+ | collation_connection | utf8_general_ci | | collation_database | latin1_swedish_ci | | collation_server | latin1_swedish_ci | +----------------------+-------------------+
修改字符集：
sudo vim /etc/mysql/my.cnf
添加以下内容
[mysqld] collation-server = utf8_unicode_ci init-connect='set names utf8' character-set-server = utf8
重启：
service mysql restart
登录权限问题
ubuntu18.04 安装mysql或者mariadb之后，发现普通用户和远程都没有权限连接。
error 1045: access denied for user: (using
password: yes)
修改了密码也不对。然后sudo mysql -u root即可登录。这显然不是我们想要的。
解决方案
删除root，重新创建用户。
首先，登录
sudo mysql -u root
然后查看当前用户
select user,host from mysql.user; +------------------+-----------+ | user | host | +------------------+-----------+ | admin | localhost | | debian-sys-maint | localhost | | magento_user | localhost | | mysql.sys | localhost | | root | localhost |
删除root账号
mysql> drop user 'root'@'localhost'; query ok, 0 rows affected (0,00 sec)
重新创建root：
mysql> create user 'root'@'%' identified by '123456'; query ok, 0 rows affected (0,00 sec)
授权
mysql> grant all privileges on *.* to 'root'@'%' with grant option; query ok, 0 rows affected (0,00 sec) mysql> flush privileges; query ok, 0 rows affected (0,01 sec)
关于重置密码
host为%时允许远程登录
set password for root@'localhost' = password('password');
or
update mysql.user set password=password('newpwd') where user='root';
or
use mysql
update user set password = password('newpwd')
where host = 'localhost' and user = 'root';
允许任何地方登录
use mysql
update user set password = password('newpwd')
where host = '%' and user = 'root';
参考
https://help.ubuntu.com/community/mysqlpasswordreset
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持移动技术网。
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