多久不用,密碼遺忘,那么MySQL在linux上如何修改密碼

一.Linux MySQL 查看版本號

二.

1.vim /etc/my.cnf 末尾加skip-grant-tables

2.重啟MySQL????service mysqld restart

3.mysql

[root@XXXXXX~]# mysql
Welcome to the MySQL monitor. ?Commands end with ; or \g.
Your MySQL connection id is 3
Server version: 5.7.19 MySQL Community Server (GPL)

Copyright (c) 2000, 2017, 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> 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 mysql.user set authentication_string=password('X新X的X密X碼X') where user='root';
Query OK, 1 row affected, 1 warning (0.00 sec)
Rows matched: 1 ?Changed: 1 ?Warnings: 1
?

補充:?mysql> update user?set?password=password(“新密碼”) where user=”用戶名”;

????????針對修改密碼有這樣的密碼,執行后報錯 　ERROR 1054(42S22) Unknown column 'password' in ‘field list’

????????因為5.7版本下的mysql數據庫下已經沒有password這個字段了，password字段改成了authentication_string

?

4. 編輯my.cnf文件刪掉skip-grant-tables

5.重啟MySQL??service mysqld restart

6.root登錄?

[root@XXXXXX~]# mysql -u root -p

?

本意想為用戶賦權

mysql> grant all privileges on hive.* to 用戶名@localhost identified by '密碼';
Query OK, 0 rows affected, 1 warning (0.00 sec)
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作者：ai_dreamweaver?
來源：CSDN?
原文：https://blog.csdn.net/u013985879/article/details/82861513?
版權聲明：本文為博主原創文章，轉載請附上博文鏈接！

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