잊어버린 MySql 로그인 비밀번호에 대한 자세한 설명 및 비밀번호 분실에 대한 해결 방법(그림)

safe_mysqld --skip-grant-tables&

[mysqld] 
datadir=/var/lib/mysql 
socket=/var/lib/mysql/mysql.sock 
skip-name-resolve 
skip-grant-tables

# /etc/init.d/mysqld restart 
Stopping MySQL: [ OK ] 
Starting MySQL: [ OK ]

# /usr/bin/mysql 
Welcome to the MySQL monitor. Commands end with ; or \g. 
Your MySQL connection id is 3 to server version: 3.23.56 
Type ‘help;' or ‘\h' for help. Type ‘\c' to clear the buffer. 
mysql> USE mysql ; 
Reading table information for completion of table and column names 
You can turn off this feature to get a quicker startup with -A 
Database changed 
mysql> UPDATE user SET Password = password ( ‘new-password' ) WHERE User = ‘root' ; 
Query OK, 0 rows affected (0.00 sec) 
Rows matched: 2 Changed: 0 Warnings: 0 
mysql> flush privileges ; 
Query OK, 0 rows affected (0.01 sec) 
mysql> quit 
Bye

# /etc/init.d/mysqld restart 
Stopping MySQL: [ OK ] 
Starting MySQL: [ OK ] 
windows

# SET PASSWORD FOR 'some_user'@'some_host' = OLD_PASSWORD(‘newpwd'); 
# FLUSH PRIVILEGES;

myisamchk -r -q d:\mysql\data\latin1\*

# sudo /etc/init.d/mysql stop

# sudo /usr/bin/mysqld_safe --skip-grant-tables

# mysql -u root

mysql> use mysql;
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A
Database changed
mysql> update user set Password = PASSWORD('root') where User ='root';
Query OK, 3 rows affected (0.00 sec)
Rows matched: 3 Changed: 3 Warnings: 0
mysql> exit

# sudo /etc/init.d/mysql restart

#myslq -u root -p

mysql> show grants for 'root'@'127.0.0.1'; 
mysql> flush privileges；

mysql> quit;