Description of the illustration alter_user

ALTER USER
  { user
    { IDENTIFIED
      { BY password [ REPLACE old_password ]
      | EXTERNALLY [ AS 'certificate_DN' | AS 'kerberos_principal_name' ]
      | GLOBALLY [ AS '{  directory_DN  |  {AZURE_USER | AZURE_ROLE }=value  
                           | {IAM_GROUP_NAME | IAM_PRINCIPAL_NAME}=value  }']
      }
    | NO AUTHENTICATION 
    | DEFAULT COLLATION collation_name
    | DEFAULT TABLESPACE tablespace
    | [ LOCAL ] TEMPORARY TABLESPACE { tablespace | tablespace_group_name }
    | { QUOTA { size_clause
              | UNLIMITED
              } ON tablespace
      } ...
    | PROFILE profile
    | DEFAULT ROLE { role [, role ]...
                   | ALL [ EXCEPT role [, role ]... ]
                   | NONE
                   }
    | PASSWORD EXPIRE
    | ACCOUNT { LOCK | UNLOCK }
    | ENABLE EDITIONS [ FOR object_type [, object_type ]... ] [ FORCE ]
    | [HTTP] DIGEST { ENABLE | DISABLE }
    | CONTAINER = { CURRENT | ALL }
    | container_data_clause
    } ...
  | user [, user ]... proxy_clause
  } ;