1.1查看已安装的包
rpm -qa|grep mysql
1.2 卸载
rpm -e --nodeps mariadb-xxxx。
1.3 清理安装文件 yum clean all
1.4 安装 yum install MariaDB-server(注意大小写)
1.5 数据库常用命令
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启动命令 systemctl start mariadb
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重启命令 systemctl restart mariadb
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关闭命令 systemctl stop mariadb
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开机自起 systemctl enable mariadb
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关闭自起 systemctl disable mariadb
1.6 登录mysql -u root -p
1.7 创建数据库 create database XXX;
1.8 创建本地用户 create user 'sync_data'@'localhost' identified by 'abcd1234';
创建外部访问用户 create user 'sync_data'@'%' identified by 'abcd1234';
1.9 赋值用户访问数据库权限
GRANT ALL PRIVILEGES ON *.* TO 'username'@'localhost' IDENTIFIED BY 'password';
grant all(insert,update,drop) *.* to 'sync_data'@'%';
GRANT ALL PRIVILEGES ON *.* TO 'sync_data'@'%' IDENTIFIED BY 'abcd1234';