mysql用户创建错误42000

Question

I'm trying to create a new user with all privileges, so I tried this code in mysql:

create user 'user'@'localhost' IDENTIFIED BY 'password'

and I got this error

-------------- create user 'user'@'localhost' IDENTIFIED BY 'password'

ERROR 1227 (42000): Access denied; you need (at least one of) the CREATE USER privilege(s) for this operation

Note :I already read this question and the answers (and tried them):

1. MySQL: ERROR 1227 (42000): Access denied - Cannot CREATE USER

Answer 1

To see what user you are logged in as:

SELECT USER();

To see the privileges of the user you are logged in as:

SHOW GRANTS;

To identify users that have "CREATE USER" privilege:

SELECT u.user, u.host, u.create_user_priv FROM mysql.user u ORDER BY u.user, u.host ;

If DML changes are made to the mysql.user , mysql.db et al. tables, then we can issue this statement to have MySQL re-read the tables to make those changes effective:

FLUSH PRIVILEGES ;

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To a get a CREATE USER statement executed, we need to be logged in as a user that has the CREATE USER privilege.

Or (less desirable) logged in as a user that has sufficient privileges, we can manually issue a DML INSERT statement to add a new row to mysql.user table, and then run the FLUSH PRIVILEGES statement.

Or (as a last resort), if we don't have login credentials for any suitable user, we can get MySQL restarted with the --skip-grant-tables option, and then make changes to the mysql.user table (using DML INSERT and/or UPDATE statements), and then restart MySQL again (this time without the --skip-grant-tables option.)