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ALTER USER

Modifies the properties for an existing user.

Syntax​

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

Where:

auth_type: {
    plaintext_password
  | double_sha1_password
  | sha256_password
}

auth_type default is double_sha1_password

Examples​

mysql>
create user 'user-a'@'%' IDENTIFIED BY 'password';
mysql>
show users;
+--------+----------+----------------------+------------------------------------------+
| name   | hostname | auth_type            | auth_string                              |
+--------+----------+----------------------+------------------------------------------+
| user-a | %        | double_sha1_password | 2470c0c06dee42fd1618bb99005adca2ec9d1e19 |
+--------+----------+----------------------+------------------------------------------+
mysql>
alter user 'user-a' IDENTIFIED WITH sha256_password BY 'password';
mysql>
show users;
+--------+----------+-----------------+------------------------------------------------------------------+
| name   | hostname | auth_type       | auth_string                                                      |
+--------+----------+-----------------+------------------------------------------------------------------+
| user-a | %        | sha256_password | 5e884898da28047151d0e56f8dc6292773603d0d6aabbdd62a11ef721d1542d8 |
+--------+----------+-----------------+------------------------------------------------------------------+