An error occurred when modifying the MariaDB database user's Host today:
ERROR 1356 (HY000): View ‘mysql.user’ references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
My steps are as follows:
1. Log in
2.use mysql;
3.执行：update user set host=‘%’ where user=‘root’;
Because the user table of MariaDB is a view, the executed statements are different from Mysql. You only need to execute the following statements:
rename user ‘root’@‘localhost’ to ‘root’@‘%’;
In addition, the operations for creating users and empowering users are attached:
Create user: create user 'username'@'%' identified by 'password';
Modify user password: alter user 'username'@'%' identified by 'password';
Delete a user: drop mysql.user 'username'@'%';
Authorized users: grant all on . to 'username'@'%' identified by 'password' with grant option;
After modifying the permissions, set Mariadb to allow remote connections
1. Modify the Mariadb configuration file
Add # to bind-address = 127.0.0.1 in /etc/mysql/mariadb.conf.d/50-server.cnf and comment out
2. Restart the service
systemctl restart mariadb.service
3. Remote link
mysql -u root -proot -h 192.168.199.240 -D mysql
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