ALTER USER

CREATE USER 'newuser' IDENTIFIED BY 'newuserpassword';

Query OK, 1 row affected (0.01 sec)

| CREATE USER for newuser@%                                                                                                                                            |
| CREATE USER 'newuser'@'%' IDENTIFIED WITH 'mysql_native_password' AS '*5806E04BBEE79E1899964C6A04D68BCA69B1A879' REQUIRE NONE PASSWORD EXPIRE DEFAULT ACCOUNT UNLOCK |
+----------------------------------------------------------------------------------------------------------------------------------------------------------------------+
1 row in set (0.00 sec)

ALTER USER 'newuser' IDENTIFIED BY 'newnewpassword';

SHOW CREATE USER 'newuser';


+----------------------------------------------------------------------------------------------------------------------------------------------------------------------+
+----------------------------------------------------------------------------------------------------------------------------------------------------------------------+
1 row in set (0.00 sec)

在 MySQL 中，ALTER 语句用于更改属性，例如使密码失效。但 TiDB 尚不支持此功能。