ALTER USER

Modifies the properties for an existing user.

Syntax

ALTER USER <name> IDENTIFIED [WITH auth_type ] BY 'auth_string'

Where:

auth_type: {
    double_sha1_password
  | sha256_password
  | no_password
}

auth_type default is double_sha1_password.

Examples

CREATE USER user1 IDENTIFIED BY 'abc123';

SHOW USERS;
+-----------+----------+----------------------+------------------------------------------+
| name      | hostname | auth_type            | auth_string                              |
+-----------+----------+----------------------+------------------------------------------+
| user1     | %        | double_sha1_password | 6691484ea6b50ddde1926a220da01fa9e575c18a |
+-----------+----------+----------------------+------------------------------------------+

ALTER USER user1 IDENTIFIED WITH sha256_password BY '123abc';

SHOW USERS;
+-------+----------+-----------------+------------------------------------------------------------------+
| name  | hostname | auth_type       | auth_string                                                      |
+-------+----------+-----------------+------------------------------------------------------------------+
| user1 | %        | sha256_password | dd130a849d7b29e5541b05d2f7f86a4acd4f1ec598c1c9438783f56bc4f0ff80 |
+-------+----------+-----------------+------------------------------------------------------------------+

ALTER USER 'user1' IDENTIFIED WITH no_password;

show users;
+-------+----------+-------------+-------------+
| name  | hostname | auth_type   | auth_string |
+-------+----------+-------------+-------------+
| user1 | %        | no_password |             |
+-------+----------+-------------+-------------+