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SQL学习笔记——SQL初入门,Ubuntu下MySQL的安装

 

刚开始接触sql,于是准备在Ubuntu下学习sql,就跟着itercast的sql教程开始入门了。

 

下面只是我个人的记录,高手请绕道:

 

一、

在安装之前,我们可以用下面这个命令通过开放端口查询来看看是否有mysql服务在运行。

当然在安装完后也可以用这个查看是否在运行。

[plain] 

$ netstat -tap|grep mysql  

如果在运行的话会看到

[plain] 

tcp        0      0 localhost:mysql         *:*       

 

二、

用apt-get即可安装:

[plain] 

$ sudo apt-get install mysql-server mysql-client  

途中会跳出窗口要求输入密码,这个就是mysql的root用户的密码

 

三、

进入mysql:

[plain] 

$ mysql -u root -p  

输入刚才的密码即可登录进去

 

四、

开关mysql服务

[plain] 

sudo start mysql  

sudo stop mysql  

 

mysql的配置文件:

/etc/mysql/my.cnf

在里面可以修改mysql的端口、数据库保存路径等信息

 

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