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ERROR 1044 (42000): Access denied for user ”@’localhost’ to database ‘demo’

不管输入什么都是提示权限不够

mysql> create database sufadi;ERROR 1044 (42000): Access denied for user ''@'localhost' to database 'sufadi'

原因

默认情况是匿名用户登陆，所以我们需要设置一个密码，然后每次需要登陆以下并进入

D:\python3-webapp-Su\www>mysql -u root -pEnter password: ******Welcome to the MySQL monitor.  Commands end with ; or \g.Your MySQL connection id is 48Server version: 5.6.24 MySQL Community Server (GPL)Copyright (c) 2000, 2015, Oracle and/or its affiliates. All rights reserved.Oracle is a registered trademark of Oracle Corporation and/or itsaffiliates. Other names may be trademarks of their respectiveowners.Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

设置密码

管理员身份运行

进入安装目录的bin文件，右键选择管理员身份运行mysql.exe

设置密码

UPDATE user SET Password=PASSWORD(‘123456’) WHERE user=’root’;

mysql> UPDATE user SET Password=PASSWORD('123456') WHERE user='root';Query OK, 3 rows affected (0.03 sec)Rows matched: 3  Changed: 3  Warnings: 0

刷新一下

flush privileges;

mysql> flush privileges    -> ;Query OK, 0 rows affected (0.01 sec)

cmd窗口重新登陆一下

mysql -u root -p

输入密码

C:\Users\admin>mysql -u root -pEnter password:

登陆成功

C:\Users\admin>mysql -u root -pEnter password: ******Welcome to the MySQL monitor.  Commands end with ; or \g.Your MySQL connection id is 49Server version: 5.6.24 MySQL Community Server (GPL)Copyright (c) 2000, 2015, Oracle and/or its affiliates. All rights reserved.Oracle is a registered trademark of Oracle Corporation and/or itsaffiliates. Other names may be trademarks of their respectiveowners.Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.mysql>

建立一个数据库

mysql> create database pythondb;Query OK, 1 row affected (0.01 sec)

show databases

mysql> show databases;+--------------------+| Database           |+--------------------+| information_schema || demo               || mysql              || performance_schema || pythondb           || sufadi             || test               |+--------------------+7 rows in set (0.00 sec)