问题
I have strange error. I am logged in local Mysql as root via command line. After creating database:
create database some_db;
Then giving privileges to some user:
grant all privileges on some_db.* to some_user@'localhost' identified by 'password';
This is giving error:
ERROR 1044 (42000): Access denied for user 'root'@'localhost' to database 'some_db'
The permissions for the root(show grants;) shows:
GRANT ALL PRIVILEGES ON *.* TO 'root'@'localhost' IDENTIFIED BY PASSWORD '*8919C53DC7A4DFBF3F8584382E96463583EB7FDA'
I am also making sure i am logged in as root:
select current_user();
And this confirms that i am logged in as 'root'@'localhost'
I have created database and assigned user multiple times and never had an issue. Why i am unable assign user to the database created by root while logged in as root?
p.s. from other posts, i am thinking the issue may be caused due to some strange users
select host, user from mysql.user;
Some users that i have not added but does show up:
MY_COMPuTER_name.local | ''
MY_COMPuTER_name.local | root
I tried to delete these users
drop user 'root'@'MY_COMPuTER_name.local';
drop user ''@'MY_COMPuTER_name.local';
However, while it states query run successful, the users are not dropped even after flush privileges. Why i am unable delete users? Any help is much appricated
回答1:
First, Identify the user you are logged in as:
select user();
select current_user();
The result for the first command is what you attempted to login as, the second is what you actually connected as. Confirm that you are logged in as root@localhost
in mysql.
Grant_priv
to root@localhost
. Here is how you can check.
mysql> SELECT host,user,password,Grant_priv,Super_priv FROM mysql.user;
+-----------+------------------+-------------------------------------------+------------+------------+
| host | user | password | Grant_priv | Super_priv |
+-----------+------------------+-------------------------------------------+------------+------------+
| localhost | root | ***************************************** | N | Y |
| localhost | debian-sys-maint | ***************************************** | Y | Y |
| localhost | staging | ***************************************** | N | N |
+-----------+------------------+-------------------------------------------+------------+------------+
You can see that the Grant_priv is set to N for root@localhost. This needs to be Y. Below is how to fixed this:
UPDATE mysql.user SET Grant_priv='Y', Super_priv='Y' WHERE User='root';
FLUSH PRIVILEGES;
GRANT ALL ON *.* TO 'root'@'localhost';
I logged back in, it was fine.
回答2:
If you get an error 1044 (42000) when you try to run SQL commands in MySQL (which installed along XAMPP server) cmd prompt, then here's the solution:
Close your MySQL command prompt.
Open your cmd prompt (from Start menu -> run -> cmd) which will show: C:\Users\User>_
Go to MySQL.exe by Typing the following commands:
C:\Users\User>cd\
C:\>cd xampp
C:\xampp>cd mysql
C:\xxampp\mysql>cd bin
C:\xampp\mysql\bin>mysql -u root
Now try creating a new database by typing:
mysql> create database employee;
if it shows:
Query OK, 1 row affected (0.00 sec) mysql>
Then congrats ! You are good to go...
回答3:
The reason i could not delete some of the users via 'drop' statement was that there is a bug in Mysql http://bugs.mysql.com/bug.php?id=62255 with hostname containing upper case letters. The solution was running following query:
DELETE FROM mysql.user where host='Some_Host_With_UpperCase_Letters';
I am still trying to figure the other issue where the root user with all permissions are unable to grant privileges to new user for particular database
来源:https://stackoverflow.com/questions/21714869/error-1044-42000-access-denied-for-root-with-all-privileges