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#中文乱码
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修改 /etc/mysql/my.cnf (默认的安装路径)
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vim /etc/mysql/my.cnf
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打开my.cnf后,在文件内的[mysqld]下增加如下两行设置:
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character_set_server=utf8
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init_connect='SET NAMES utf8'
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#升级,在linux上先查看系统的版本号,根据版本号对应下载
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more /etc/redhat-release
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rpm -i http://repo.mysql.com/mysql-community-release-el6-5.noarch.rpm
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yum list mysql*
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yum install mysql-community-server
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1、安装
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查看有没有安装过:
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yum list installed mysql*
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rpm -qa | grep mysql*
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查看有没有安装包:
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yum list mysql*
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安装mysql客户端:
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yum install mysql
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安装mysql 服务器端:
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yum install mysql-server
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yum install mysql-devel
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删除
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yum -y remove mysql*
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2、启动&&停止
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数据库字符集设置
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mysql配置文件/etc/my.cnf中加入default-character-set=utf8
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启动mysql服务:
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service mysqld start或者/etc/init.d/mysqld start
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开机启动:
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chkconfig -add mysqld,查看开机启动设置是否成功chkconfig --list | grep mysql*
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mysqld 0:关闭 1:关闭 2:启用 3:启用 4:启用 5:启用 6:关闭
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停止:
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service mysqld stop
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2、登录
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创建root管理员:
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mysqladmin -u root password 123456
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www.2cto.com
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登录:
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mysql -u root -p输入密码即可。
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忘记密码:
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service mysqld stop
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mysqld_safe --user=root --skip-grant-tables
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mysql -u root
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use mysql
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update user set password=password("new_pass") where user="root";
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flush privileges;
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3、远程访问
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开放防火墙的端口号
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mysql增加权限:mysql库中的user表新增一条记录host为“%”,user为“root”。
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4、Linux MySQL的几个重要目录
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www.2cto.com
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数据库目录
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/var/lib/mysql/
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配置文件
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/usr/share /mysql(mysql.server命令及配置文件)
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相关命令
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/usr/bin(mysqladmin mysqldump等命令)
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启动脚本
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/etc/rc.d/init.d/(启动脚本文件mysql的目录)
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创建用户:
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create user 'ifish'@'localhost' identified by 'ifish7pwd';
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赋权限
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grant all on myfishdb.* to 'ifish'@'localhost';
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删除用户
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drop user 'ifish'@'localhost';
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创建数据库
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DROP DATABASE IF EXISTS `myfishdb`;
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CREATE DATABASE `myfishdb` DEFAULT CHARACTER SET utf8 COLLATE utf8_general_ci;
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