MySQL之——忘记Root密码如何操作
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2024-01-12 15:44:40
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1、在命令行输入命令
root@centos64 mysql]# /usr/bin/mysqld_safe --skip-grant-tables&
2. 再启一个终端执行下面的一系列命令:
[root@centos64 proc]# mysql Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 1 Server version: 5.6.13 MySQL Community Server (GPL) Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. mysql> UPDATE user SET password=password('admin') WHERE user='root'; ERROR 1046 (3D000): No database selected mysql> show databases ; +--------------------+ | Database | +--------------------+ | information_schema | | mysql | | performance_schema | | test | +--------------------+ 4 rows in set (0.06 sec) 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('admin') WHERE user='root'; Query OK, 4 rows affected (0.04 sec) Rows matched: 4 Changed: 4 Warnings: 0 mysql> flush privileges; 也可以不用。 mysql> exit Bye
注意,就是有可能,user表中根本就没有root这个用户。
如果没有此用户,用:
mysql> insert into mysql.user(Host,User,Password,ssl_cipher,x509_issuer,x509_subject) values("localhost","root",password("admin"),"","",""); Query OK, 1 row affected (0.10 sec)
3.授权。 给所有的权限
mysql> grant all privileges on *.* to 'root'@'localhost' identified by 'admin' ; Query OK, 0 rows affected (0.06 sec) mysql> flush privileges;
再以正常的方式启动即可。
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