Home Database Mysql Tutorial MySQL最基本的命令使用汇总_MySQL

MySQL最基本的命令使用汇总_MySQL

May 30, 2016 pm 05:10 PM

一、连接MySQL(和PHP搭配之最佳组合)

格式: -h主机地址 -u用户名 -p用户密码

代码如下:

 -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:admin -u用户名 -p旧密码 password 新密码

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

代码如下:

admin -uroot -password ab12

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。

例2:再将root的密码改为djg345,命令:

代码如下:

admin -uroot -pab12 password djg345

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)

代码如下:

grant select,insert,update,

  delete on *.* to test1@\"%\" Identified by \"abc\";

但例1增加的用户是十分危险的,你想如某个人知道test1的密码,那么他就可以在internet上的任何一台电脑上登录你的MySQL数据库并对你的数据可以为所欲为了, 代码如下:

grant select,insert,update,

  delete on mydb.* to test2@localhost identified by \"abc\";

  如果你不想test2有密码,可以再打一个命令将密码消掉。

  

代码如下:

grant select,insert,update,delete on mydb

  .* to test2@localhost identified by \"\";

以上叙述了登录、增加用户、密码更改等问题,希望对大家的学习有所帮助。

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