Centos7上卸载Mariadb数据库

查询所安装的MariaDB组件：

[root@localhost logs]# rpm -qa | grep Maria*
MariaDB-server-5.5.49-1.el7.centos.x86_64
MariaDB-common-5.5.49-1.el7.centos.x86_64
MariaDB-client-5.5.49-1.el7.centos.x86_64

卸载数据库：

[root@localhost logs]# yum -y remove Mari*

删除数据库文件：

[root@localhost logs]# rm -rf /var/lib/MySQL/*

安装

yum -y install mariadb mariadb-server

启动

systemctl start mariadb

系统开启自启动

systemctl enable mariadb

接下来进行MariaDB的相关简单配置

mysql_secure_installation

修改字符集

vim /etc/my.conf

[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock

character-set-server=utf8
collation-server=utf8_bin

添加用户和远程授权

mysql> grant all privileges on *.* to root@'%'identified by 'password';