Home Database Mysql Tutorial 如何为用户设置密码(MYSQL)

如何为用户设置密码(MYSQL)

Jun 07, 2016 pm 04:05 PM
mysql Install password machine user set up

当初次在机器上安装完Mysql时,你可以匿名进行访问数据库或者以不带口令的root身份进入数据库。另外如果你是一个管理员,你还要进行一些用户的建立及授权,这又涉及到设置密码的问题。下面我们就讨论一下如何设置密码。 首先我们应该知道Mysql数据库中的口令

当初次在机器上安装完Mysql时,你可以匿名进行访问数据库或者以不带口令的root身份进入数据库。另外如果你是一个管理员,你还要进行一些用户的建立及授权,这又涉及到设置密码的问题。下面我们就讨论一下如何设置密码。

首先我们应该知道Mysql数据库中的口令存储必须用password()函数加密它。因为在user表中是以加密形式存储口令,而不是作为纯文本。如果你没有加密,直接在数据库中执行以下语句:
use mysql insert into user (host,user,password) values(%,user_name,your password);

flush privileges;

相信结果不会让你满意。因为服务器比较的是加密的值,所以服务器连接一定失败。

这里需要说明的是flush privileges;这条命令起到了重新加载授权表。你也可以在shell下直接用mysqladmin -u root reload或者mysqladmin -u root flush-privileges来实现重载授权表。

在Mysql环境下,你可以使用以下语句进行设置密码:
1 insert into user(host,user,password) values(%,user_name,password("your password");
2 set password for user_name = password("your password")

以上两种方法都必须进行重载授权表。

3 当然你也可以在创建一个用户时直接设置密码,grant语句将为你自动加密口令。

如:grant all on *.* to user_name@% identified by "your password";

另外你也可以在shell环境下用mysqladmin程序来设置密码。

如:mysqladmin -u root password "your password"            (责任编辑:铭铭)


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