怎么用命令行修改MySQL数据库密码
通过MySQL命令行来修改MySQL数据库的密码,下面就为您详细介绍如何使用MySQL命令行来修改密码。 格式:mysqladmin -u用户名 -p旧密码 password 新密码
1、给root加个密码pass123:
首先在DOS下进入目录mysqlbin,然后键入以下命令
代码如下 | 复制代码 |
mysqladmin -u root -password pass123 |
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、将root的密码改为pass456。
代码如下 | 复制代码 |
mysqladmin -u root -p pass123 password pass456 |
上面两个是在cmd命令行中输入的命令,所以直接回车就可以。
下面介绍MYSQL环境中的命令,Mysql命令结束后都带一个分号作为命令结束符。
3、命令行修改root密码:
代码如下 | 复制代码 |
mysql> UPDATE mysql.user SET password=PASSWORD('newpassword') WHERE User='root'; |
运行完这行之后会提示下面的信息:
代码如下 | 复制代码 |
Query OK, 0 rows affected (0.00 sec) Rows matched: 2 Changed: 0 Warnings: 0 |
这时候还需要运行下面一句,否则密码不会被修改:
代码如下 | 复制代码 |
mysql> FLUSH PRIVILEGES; |
下面运行结果代表修改成功:
Query OK, 0 rows affected (0.16 sec)
4、显示当前的user:
代码如下 | 复制代码 |
mysql> SELECT USER(); |

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