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MY SQL 常用命令_MySQL

Jun 01, 2016 pm 01:53 PM
mysqlchange PasswordInstallusername

  有很多朋友虽然安装好了mysql但却不知如何使用它。在这篇文章中我们就从连接MYSQL、修改密码、增加用户等方面来学习一些MYSQL的常用命令。

  一、连接MYSQL

  格式:mysql-h主机地址-u用户名-p用户密码

  1、例1:连接到本机上的MYSQL。

  首先在打开DOS窗口,然后进入目录mysqlbin,再键入命令mysql-uroot-p,回车后提示你输密码,如果刚安装好MYSQL,超级用户root是没有密码的,故直接回车即可进入到MYSQL中了,MYSQL的提示符是:mysql>

  2、例2:连接到远程主机上的MYSQL。假设远程主机的IP为:110.110.110.110,用户名为root,密码为abcd123。则键入以下命令:

  mysql-h110.110.110.110-uroot-pabcd123

  (注:u与root可以不用加空格,其它也一样)

  3、退出MYSQL命令:exit(回车)

  二、修改密码

  格式:mysqladmin-u用户名-p旧密码password新密码

  1、例1:给root加个密码ab12。首先在DOS下进入目录mysqlbin,然后键入以下命令

  mysqladmin-uroot-passwordab12

  注:因为开始时root没有密码,所以-p旧密码一项就可以省略了。

  2、例2:再将root的密码改为djg345。

  mysqladmin-uroot-pab12passworddjg345

  三、增加新用户(注意:和上面不同,下面的因为是MYSQL环境中的命令,所以后面都带一个分号作为命令结束符)

  格式:grantselecton数据库.*to用户名@登录主机identifiedby"密码"

  例1、增加一个用户test1密码为abc,让他可以在任何主机上登录,并对所有数据库有查询、插入、修改、删除的权限。首先用以root用户连入MYSQL,然后键入以下命令:

  grantselect,insert,update,deleteon*.*totest1@"%"Identifiedby"abc";

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