mysql grant all privileges on赋给用户远程权限
mysql中grant all privileges on赋给用户远程权限
改表法。
当你的帐号不允许从远程登陆，只能在localhost连接时。这个时候只要在mysql服务器上，更改 mysql 数据库里的 user 表里的 host 项，从localhost"改成%即可实现用户远程登录
在安装mysql的机器上运行：
1. mysql -u root -p
2. select host,user from user where user='root';
3. update user set host = '%' where user='root' and host='localhost';
4. select host, user from user where user='root';
授权法
[root@aaa-server ~]# mysql -u root -p MariaDB [(none)]> grant all privileges on *.* to root@'%' identified by '123' with grant option; Query OK, 0 rows affected (0.00 sec) MariaDB [(none)]> flush privileges; Query OK, 0 rows affected (0.01 sec) MariaDB [(none)]> flush privileges; Query OK, 0 rows affected (0.00 sec) MariaDB [(none)]> exit Bye
授权法。
例如，你想user使用mypwd从任何主机连接到mysql服务器的话。
在安装mysql的机器上运行：
1. GRANT ALL PRIVILEGES ON *.* TO 'user'@'%' IDENTIFIED BY 'mypwd' WITH
GRANT OPTION;
2.FLUSH PRIVILEGES;
模板：
grant all privileges on 库名.表名 to '用户名'@'IP地址' identified by '密码' with grant option;
flush privileges;如果你想允许用户user从ip为192.168.1.4的主机连接到mysql服务器，并使用mypwd作为密码
在安装mysql的机器上运行：
GRANT ALL PRIVILEGES ON *.* TO 'user'@'192.168.1.3' IDENTIFIED BY 'mypwd' WITH GRANT OPTION; FLUSH PRIVILEGES;
注意授权后必须FLUSH PRIVILEGES;否则无法立即生效。
高版本数据库不能按照grant all privileges on *.* to "root"@"%" identified by "xxxx";去修改用户权限
mysql> SELECT @@VERSION; +-----------+ | @@VERSION | +-----------+ | 8.0.14 | +-----------+ 1 row in set (0.00 sec)
高版本修改用户权限方法：
# 先创建远程用户，再授权 mysql> create user 'root'@'%' identified by 'password'; Query OK, 0 rows affected (0.03 sec) mysql> grant all privileges on *.* to 'root'@'%' with grant option; Query OK, 0 rows affected (0.01 sec) mysql> flush privileges; Query OK, 0 rows affected (0.00 sec)
再次查看发现有了root %
mysql> select User,Host from user; +------------------+-----------+ | User | Host | +------------------+-----------+ | root | % | | mysql.infoschema | localhost | | mysql.session | localhost | | mysql.sys | localhost | | root | localhost | +------------------+-----------+ 5 rows in set (0.00 sec) ————————————————
mysql授权语句说明grant all privileges、创建用户、删除用户
mysql的赋权语句：
grant all privileges on *.* to 'root'@'%' identified by '123456' with grant option;
all privileges ==》 表示所有的权限 ，增删改查权限全部都有了
*.* ==> 所有的数据库下面所有的表
root@% ==》 所有数据库下面所有的表，所有的权限，全部都给root用户 % 表示root用户可以在任意机器上面进行连接登录
The password used for remote login connection is "123456".
刷新权限列表：flush privileges
CREATE DATABASE 数据库名; CREATE USER '用户名'@'%' IDENTIFIED BY '密码'; GRANT all privileges ON 数据库名.* to '用户名'@'%' identified by '密码' WITH GRANT OPTION; flush privileges;
创建用户：CREATE USER 'jack'@'localhost' IDENTIFIED BY 'test123';
查看数据库中已经创建的用户：select user,host from user;--user表在数据库自带的、名字为mysql的数据库中
删除用户：delete from user where user = 'jack';
drop user ‘jack'@'%';
drop user 会将该用户的信息全部删掉，而 delete 只会清除user表，其他的比如db表中的信息还是存在。
清除缓存：FLUSH PRIVILEGES
