多久不用,密码遗忘,那么MySQL在linux上如何修改密码
一.Linux MySQL 查看版本号
二.
1.vim /etc/my.cnf 末尾加skip-grant-tables
2.重启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码X') where user='root';
Query OK, 1 row affected, 1 warning (0.00 sec)
Rows matched: 1 Changed: 1 Warnings: 1
补充: mysql> update user set password=password(“新密码”) where user=”用户名”;
针对修改密码有这样的密码,执行后报错 ERROR 1054(42S22) Unknown column 'password' in ‘field list’
因为5.7版本下的mysql数据库下已经没有password这个字段了，password字段改成了authentication_string
4. 编辑my.cnf文件删掉skip-grant-tables
5.重启MySQL service mysqld restart
6.root登录
[root@XXXXXX~]# mysql -u root -p
本意想为用户赋权
mysql> grant all privileges on hive.* to 用户名@localhost identified by '密码';
Query OK, 0 rows affected, 1 warning (0.00 sec)
