ERROR 1044 (42000): Access denied for user ''@'localhost' to database 'mysql'
来源:互联网 发布:人工智能四大平台 垄断 编辑:程序博客网 时间:2024/06/06 20:18
使用mysql数据库时,遇到如下错误:
ERROR 1044 (42000): Access denied for user ”@’localhost’ to database ‘mysql’
这是由于mysql数据库的user表里,存在用户名为空的账户即匿名账户,导致登录的时候是虽然用的是root,但实际是匿名登录的,通过错误提示里的”@’localhost’可以看出来。
具体解决步骤如下:
1.关闭mysql
# service mysqld stop
2.屏蔽权限
# mysqld_safe --skip-grant-table or # /usr/bin/mysqld_safe --skip-grant-tableStarting demo from .....
3.新开起一个终端输入
# mysql -u root mysqlmysql> UPDATE user SET Password=PASSWORD('newpassword') where USER='root';//重置root密码mysql> delete from user where USER='';//删除空用户mysql> FLUSH PRIVILEGES;//记得要这句话,否则如果关闭先前的终端,又会出现原来的错误mysql> exit
4.重启mysql
# service mysqld restart
其他问题
问题1:
对于mysql 5.7,使用时可能遇到:
mysql> show databases;
ERROR 1820 (HY000): You must reset your password using ALTER USER statement before executing this statement.
要求重置密码,但重置root密码时:
“the unknown field Password error above use”
则使用:
mysql>set authentication_string=password('my_password') where user='root';
或者
mysql> set password=password('new_password');
问题2:
ERROR 1819 (HY000): Your password does not satisfy the current policy requirements
提示密码复杂度不够,密码要包括数字,大小写,特殊符号等
mysql> set password=password('!XXXXX);Query OK, 0 rows affected, 1 warning (0.00 sec)
参考:
http://www.cnblogs.com/Anker/p/3551610.html
http://myway84.iteye.com/blog/1001915
https://superuser.com/questions/603026/mysql-how-to-fix-access-denied-for-user-rootlocalhost
- ERROR 1044 (42000): Access denied for user ''@'localhost' to database
- ERROR 1044 (42000): Access denied for user ''@'localhost' to database
- ERROR 1044 (42000): Access denied for user ”@’localhost’ to database
- mysql root 进入出现ERROR 1044(42000):Access denied for user ''@'localhost' to database 'mysql'
- ubuntu mysql root 进入出现ERROR 1044(42000):Access denied for user ''@'localhost' to database 'mysql'
- ERROR 1044 (42000): Access denied for user ''@'localhost' to database 'mysql'
- ERROR 1044 (42000): Access denied for user ''@'localhost' to database 'mysql
- ERROR 1044 (42000): Access denied for user ''@'localhost' to database 'mysql'
- ERROR 1044 (42000): Access denied for user ''@'localhost' to database 'mysql'
- ERROR 1044 (42000): Access denied for user ''@'localhost' to database 'mysql'
- ERROR 1044 (42000): Access denied for user ''@'localhost' to database 'mysql'
- error 1044 (42000):access denied for user ''@'localhost' to database 'mysql'错误解决方案
- ERROR 1044 (42000): Access denied for user ''@'localhost' to database 'mysql'
- ERROR 1044 (42000): Access denied for user ''@'localhost' to database 'mysql'
- ERROR 1044 (42000): Access denied for user ''@'localhost' to database 'mysql'
- ERROR 1044 (42000): Access denied for user ''@'localhost' to database 'mysql'
- ERROR 1044 (42000): Access denied for user ''@'localhost' to database 'mysql' .
- ERROR 1044 (42000): Access denied for user ''@'localhost' to database 'mysql'
- 23种设计模式(1):单例模式(Singleton Pattern)
- notifyDataSetChanged()无效原因
- 洛谷 P1051 谁拿了最多奖学金
- Nginx+Tomcat搭建集群,Spring Session+Redis实现Session共享
- Tornado应用笔记02-RequestHandler与Application
- ERROR 1044 (42000): Access denied for user ''@'localhost' to database 'mysql'
- 原来想法的测试用例的选取
- eclipse实现JavaWeb应用增量打包
- 使用GrideView实现日历控件
- 各类开发工具插件
- 关于POI导入导出Excel
- 列表侧滑删除(二)
- 窗口函数之聚合函数的高级用法(一)
- Android SharedPreference存储键值对