CODE EXAMPLE FOR SQL

update user mysql

ALTER USER [IF EXISTS]
    user [auth_option] [, user [auth_option]] ...
    [REQUIRE {NONE | tls_option [[AND] tls_option] ...}]
    [WITH resource_option [resource_option] ...]
    [password_option | lock_option] ...
    [COMMENT 'comment_string' | ATTRIBUTE 'json_object']

ALTER USER [IF EXISTS]
    USER() user_func_auth_option

ALTER USER [IF EXISTS]
    user [registration_option]

ALTER USER [IF EXISTS]
    USER() [registration_option]

ALTER USER [IF EXISTS]
    user DEFAULT ROLE
    {NONE | ALL | role [, role ] ...}

user:
    (see Section 6.2.4, “Specifying Account Names”)

auth_option: {
    IDENTIFIED BY 'auth_string'
        [REPLACE 'current_auth_string']
        [RETAIN CURRENT PASSWORD]
  | IDENTIFIED BY RANDOM PASSWORD
        [REPLACE 'current_auth_string']
        [RETAIN CURRENT PASSWORD]
  | IDENTIFIED WITH auth_plugin
  | IDENTIFIED WITH auth_plugin BY 'auth_string'
        [REPLACE 'current_auth_string']
        [RETAIN CURRENT PASSWORD]
  | IDENTIFIED WITH auth_plugin BY RANDOM PASSWORD
        [REPLACE 'current_auth_string']
        [RETAIN CURRENT PASSWORD]
  | IDENTIFIED WITH auth_plugin AS 'auth_string'
  | DISCARD OLD PASSWORD
  | ADD factor factor_auth_option [ADD factor factor_auth_option]
  | MODIFY factor factor_auth_option [MODIFY factor factor_auth_option]
  | DROP factor [DROP factor]
}

user_func_auth_option: {
    IDENTIFIED BY 'auth_string'
        [REPLACE 'current_auth_string']
        [RETAIN CURRENT PASSWORD]
  | DISCARD OLD PASSWORD
}

factor_auth_option: {
    IDENTIFIED BY 'auth_string'
  | IDENTIFIED BY RANDOM PASSWORD
  | IDENTIFIED WITH auth_plugin BY 'auth_string'
  | IDENTIFIED WITH auth_plugin BY RANDOM PASSWORD
  | IDENTIFIED WITH auth_plugin AS 'auth_string'
}

registration_option: {
    factor INITIATE REGISTRATION
  | factor FINISH REGISTRATION SET CHALLENGE_RESPONSE AS 'auth_string'
  | factor UNREGISTER
}

factor: {2 | 3} FACTOR

tls_option: {
   SSL
 | X509
 | CIPHER 'cipher'
 | ISSUER 'issuer'
 | SUBJECT 'subject'
}

resource_option: {
    MAX_QUERIES_PER_HOUR count
  | MAX_UPDATES_PER_HOUR count
  | MAX_CONNECTIONS_PER_HOUR count
  | MAX_USER_CONNECTIONS count
}

password_option: {
    PASSWORD EXPIRE [DEFAULT | NEVER | INTERVAL N DAY]
  | PASSWORD HISTORY {DEFAULT | N}
  | PASSWORD REUSE INTERVAL {DEFAULT | N DAY}
  | PASSWORD REQUIRE CURRENT [DEFAULT | OPTIONAL]
  | FAILED_LOGIN_ATTEMPTS N
  | PASSWORD_LOCK_TIME {N | UNBOUNDED}
}

lock_option: {
    ACCOUNT LOCK
  | ACCOUNT UNLOCK
}