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Linux服务器配置方案MySQL_MySQL

Jun 01, 2016 pm 02:12 PM
mysql information database plan server examine Configuration


  MySQL是一个多用户、多线程SQL数据库服务器。可以用于各种流行操作系统平台的关系数据库,它具有客户机/服务器体系结构的分布式数据库管理系统。MySQL完全适用于网络,用其建造的数据库可以在网上的任意地方访问。MySQL可以使用SQL语言。SQL(结构化查询语言)是世界上最流行的和标准化的数据库语言。MySQL是以一个客户机/服务器结构的实现,它由一个服务器守护程序mysqld和很多不同的客户程序和库组成。SQL是一种标准化的语言,它使得存储、更新信息更容易。MySQL主要目标是快速、健壮和易用。
  
  一. MySQL的安装
  
    所需资源:
  
    在XteamLinux 4.0中,系统已经默认安装了MySQL,版本号是:3.23.36。
  
  二. 升级方法:
  
    第一步:rpm -Uvh MySQL包。
    第二步:执行mysql,启动MySQL monitor就可以使用mysql数据库了。
  
  三. MySQL的使用
  
    注意:使用查询语句时,需要在查询语句的结尾处键入一个分号(;)并按Enter键。
  
    启动MySQL守护进程(XteamLinux 4.0默认情况下是未开启的)
      /etc/rc.d/init.d/mysql start
    关闭MySQL守护进程
      /etc/rc.d/init.d/mysql stop
    检查MySQL服务器运行情况
  
    1、检查MySQL的属性
  
    /usr/bin/mysqladmin variables
  
    2、检查MySQL的版本信息/usr/bin/mysqladmin version
  
    3、检查MySQL运行状态/usr/bin/mysqladmin status
  
    4、检查MySQL服务器此时正运行的线程信息
    /usr/bin/mysqladmin processlist
  
    5、检查MySQL的状态
    mysqladmin ping
  
    6、刷新所有的表并重写日志文件
    Flush all tables and close and open logfiles
    mysqladmin refresh
  
  四. 连接和断开服务器
  
    1、连接服务器
  
    mysql -h host -u user -p
     #如果此服务运行在与MySQL相同的机器上,这个选项一般可以省略。
    #要求输入口令
  
    2、断开服务器
  
    quit
    #进入MySQL之后可以敲help来获取帮助信息
     #还可以键入[Ctrl+D]来退出。
  
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