MySql5.5忘記root密碼怎麼辦

duanhao發表於2021-09-09

使用mysql5.5,突然root密碼忘記,怎麼也登入不了,很急人,該怎麼解決呢?下面透過本文給大家介紹mysql5.5忘記root密碼的解決辦法,需要的朋友參考下吧

方法一:

作業系統:windows作業系統,xp或win7.

C:UsersAdministrator>cd C:Program FilesMySQLMySQL Server 5.5bin
C:Program FilesMySQLMySQL Server 5.5bin>net stop mysql

MySQL 服務正在停止.

MySQL 服務已成功停止。

C:Program FilesMySQLMySQL Server 5.5bin>mysqld --skip-grant-tables

你會看到視窗游標在下一行的第一個位置閃爍,這說明已經啟動了,不需要管。

新建一個命令列視窗同樣進入到e:mysql5.5bin目錄,啟動mysql

?


C:Program FilesMySQLMySQL Server 5.5bin>mysqlWelcome to the MySQL monitor. Commands end with ; or g.Your MySQL connection id is 1Server version: 5.5.36 MySQL Community Server (GPL)Copyright (c) 2000, 2014, 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> show databases;+--------------------+| Database |+--------------------+| information_schema || mysql || performance_schema || test |+--------------------+4 rows in set (0.00 sec)mysql> use mysql;Database changedmysql> update user set password=PASSWORD('oracle') where user='root';Query OK, 2 rows affected (0.00 sec)Rows matched: 2 Changed: 2 Warnings: 0mysql> flush privileges;Query OK, 0 rows affected (0.01 sec)mysql> quitBye

看看那工作管理員中是否有mysqld.exe程式,如有,kill .


C:Program FilesMySQLMySQL Server 5.5bin>net start mysql

MySQL 服務正在啟動 .

MySQL 服務已經啟動成功。

?


C:Program FilesMySQLMySQL Server 5.5bin>mysql -uroot -poracleWelcome to the MySQL monitor. Commands end with ; or g.Your MySQL connection id is 1Server version: 5.5.36 MySQL Community Server (GPL)Copyright (c) 2000, 2014, 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>

方法二:

作業系統:windows作業系統,xp或win7.

  1.dos命令列視窗 進入e:mysql5.5bin ,停止mysql 服務

  e:mysql5.5bin>net stop mysql

  注意:看看那工作管理員中是否有mysqld.exe程式,如有,kill them all.

  2. 以不檢查許可權的方式啟動mysql

  e:mysql5.5bin>mysqld.exe --skip-grant-tables

  你會看到視窗游標在下一行的第一個位置閃爍,這說明已經啟動了,不需要管。

  3. 新建一個命令列視窗同樣進入到e:mysql5.5bin目錄,啟動mysql

  e:mysql5.5bin>mysql

  4. 修改root密碼

?

1234 mysql>use mysql  mysql>update user set password=PASSWORD('new_password') where user='root';  mysql>flush privileges;  mysql>quit

  5. 看看那工作管理員中是否有mysqld.exe程式,如有,kill them all.

  6. 重啟mysql,就可以用你設定新密碼登陸

?

123 e:mysql5.5bin>net start mysql  e:mysql5.5bin>mysql -u root -pnew_password   that's all .


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