mysql错误ERROR 1044 (42000): Access denied for user

[复制链接]

975

主题

975

帖子

629

积分

高级会员

Rank: 4

积分
629
分享到:
发表于 2022-5-9 15:10:15 | 显示全部楼层 |阅读模式
mysql错误ERROR 1044 (42000): Access denied for user ''@'localhost' to database 'MAC'解决办法
MariaDB [(none)]> create database MAC;ERROR 1044 (42000): Access denied for user ''@'localhost' to database 'MAC'MariaDB [(none)]> 方法一:1.关闭mysql # service mysqld stop 【备注centos7是systemctl stop mariadb】2.屏蔽权限 # mysqld_safe --skip-grant-table 屏幕出现: Starting demo from .....3.新开起一个终端输入 #mysql -uroot -pxxxxxx MariaDB [(none)]> use mysql; MariaDB [mysql]> MariaDB [mysql]> UPDATE user SET Password=PASSWORD('newpassword') where USER='root'; 【备注:下一次会用newpassword密码登录数据库】 MariaDB [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 MariaDB [mysql]> \q----------------------------------------------------------------------------我的实操测试[root@nessus ~]# systemctl stop mysqldFailed to stop mysqld.service: Unit mysqld.service not loaded.[root@nessus ~]# systemctl stop mariadb[root@nessus ~]# [root@nessus ~]# [root@nessus ~]# mysqld_safe --skip-grant-table191030 11:11:24 mysqld_safe Logging to '/var/log/mariadb/mariadb.log'.191030 11:11:24 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql新开起一个终端输入[root@nessus ~]# mysql -uroot 【我的无密码】MariaDB [(none)]> use mysql;Reading table information for completion of table and column namesYou can turn off this feature to get a quicker startup with -ADatabase changedMariaDB [mysql]> UPDATE user SET Password=PASSWORD('newpassword') where USER='root';Query OK, 4 rows affected (0.01 sec)Rows matched: 4 Changed: 4 Warnings: 0MariaDB [mysql]> MariaDB [mysql]> MariaDB [mysql]> FLUSH PRIVILEGES;Query OK, 0 rows affected (0.00 sec)MariaDB [mysql]> \qBye[root@nessus ~]# mysql -uroot 【发现之前无密码无法登陆了】ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO)[root@nessus ~]# [root@nessus ~]# mysql -uroot -pnewpassword 【得用newpassword密码登录数据库】Welcome to the MariaDB monitor. Commands end with ; or \g.Your MariaDB connection id is 5Server version: 5.5.60-MariaDB MariaDB ServerCopyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.MariaDB [(none)]> MariaDB [(none)]> MariaDB [(none)]> MariaDB [(none)]> create database MAC;Query OK, 1 row affected (0.00 sec)MariaDB [(none)]> MariaDB [(none)]> MariaDB [(none)]> MariaDB [(none)]>

使用高级回帖 (可批量传图、插入视频等)快速回复

您需要登录后才可以回帖 登录 | 注册

本版积分规则   Ctrl + Enter 快速发布  

发帖时请遵守我国法律,网站会将有关你发帖内容、时间以及发帖IP地址等记录保留,只要接到合法请求,即会将信息提供给有关政府机构。
快速回复 返回顶部 返回列表