mac mysql 重置root密码

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解决方法:

第一步:如果mysql服务正在进行,将之停止。

第二步:在终端中以管理员权限启动mysqld_safe,命令如下:

sudo /usr/local/mysql/bin/mysqld_safe --skip-grant-tables

执行结果如下:

2016-06-12T08:29:17.6NZ mysqld_safe Logging to '/usr/local/mysql/data/lyqdeMacBook-Pro.local.err'.2016-06-12T08:29:17.6NZ mysqld_safe Starting mysqld daemon with databases from /usr/local/mysql/data

第三步:不要关闭当前的终端窗口,新建一个终端窗口,输入如下命令,回车登录mysql

/usr/local/mysql/bin/mysql

登录后,看到欢迎信息:

复制代码
Welcome to the MySQL monitor.  Commands end with ; or \g.Your MySQL connection id is 37Server version: 5.7.13 MySQL Community Server (GPL)Copyright (c) 2000, 2016, Oracle and/or its affiliates. All rights reserved.Oracle is a registered trademark of Oracle Corporation and/or itsaffiliates. Other names may be trademarks of their respectiveowners.Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.mysql> 
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打开"mysql"这个数据库,SQL如下:

mysql> use mysql;

看到结果:

Reading table information for completion of table and column namesYou can turn off this feature to get a quicker startup with -ADatabase changedmysql> 

然后,更新root的密码,SQL如下:

mysql> update user set authentication_string=password('root') where Host='localhost' and User='root';

注意:

①有的版本的mysql中,密码可能存储在password字段中,可以使用"describe user;"命令来查看下表结构再操作

authentication_string的值一定通过password函数来计算(password('root'))

 

执行结果如下:

Query OK, 1 row affected, 1 warning (0.01 sec)Rows matched: 1  Changed: 1  Warnings: 1

退出mysql(执行sql语句:exit)

最后一步:重启mysqld。

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