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Homephp教程php手册 对mysql数据权限操作,默认的mysql数据库找不到

今天想给同事连接我电脑的上的本地数据库,然后不小心权限弄错。导致数据库都看不见了,在此做下笔记。网上都是说怎么操作liunx的,windows下的方法命令不太一样
我在mysql>后输入 show databases; 只出现information_schema和test两个数据库,mysql数据库不知道哪去了,是什么原因,做其他东西需要mysql这个数据库

还有当创建数据库时,比如 create database database_name;总出现 access denied for user ''@'localhost' to database 'database_name'


方法一:
1.关闭mysql

2.屏蔽权限
# mysqld --skip-grant-table
于是屏幕卡在不动,也没有另起一行新的。这时其实已经越过权限登录了。
3.新开起一个终端输入
# mysql -u root mysql
mysql> UPDATE user SET Password=PASSWORD('newpassword') where USER='root';
mysql> FLUSH PRIVILEGES;//记得要这句话,否则如果关闭先前的终端,又会出现原来的错误
mysql> \q

方法二:
1.关闭mysql

2.屏蔽权限
# mysqld --skip-grant-table
于是屏幕卡在不动,也没有另起一行新的。这时其实已经越过权限登录了。
3.新开起一个终端输入
# mysql -u root mysql
mysql> delete from user where USER='';
mysql> FLUSH PRIVILEGES;//记得要这句话,否则如果关闭先前的终端,又会出现原来的错误
mysql> \q

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