Update ... Select From - mysql

Question

I have a members_info table that has many members in it, but what I need to do is update member B's info with member A's info.
Here are the members user id's:
Member A = 98089 (member_info_id)
Member B = 236505 (member_info_id)
The two members have nothing in common, so I can't do join. What can I do to update Member B's info?
Here is the table's structure, but I doubt it is useful
mysql> describe member_info;
+-------------------------------+--------------+------+-----+-------------------+----------------+
| Field | Type | Null | Key | Default | Extra |
+-------------------------------+--------------+------+-----+-------------------+----------------+
| member_info_id | int(11) | NO | PRI | NULL | auto_increment |
| member_id | int(11) | NO | UNI | 0 | |
| street | varchar(100) | NO | | NULL | |
| street2 | varchar(50) | NO | | | |
| city | varchar(50) | NO | | | |
| state | varchar(50) | NO | | | |
| country_id | int(11) | NO | | 0 | |
| postal | varchar(20) | NO | | | |
| phone | varchar(20) | NO | | | |
| street_ntv | varchar(100) | NO | | | |
| street2_ntv | varchar(50) | NO | | | |
| city_ntv | varchar(50) | NO | | | |
| state_ntv | varchar(50) | NO | | | |
| card_ship_addr | varchar(250) | NO | | NULL | |
| tax_id | varchar(20) | NO | | | |
| c_type | varchar(20) | NO | | | |
| c_number | varchar(20) | NO | | | |
| c_code | varchar(5) | NO | | | |
| c_date | varchar(10) | NO | | | |
| c_name | varchar(50) | NO | | | |
| street_b | varchar(100) | NO | | NULL | |
| street_b2 | varchar(50) | NO | | | |
| city_b | varchar(50) | NO | | | |
| state_b | varchar(50) | NO | | | |
| country_b_id | int(11) | NO | | 0 | |
| postal_b | varchar(20) | NO | | | |
| new_data | text | NO | | NULL | |
| new_data_code | varchar(10) | NO | | | |
| new_data_date | int(11) | NO | | 0 | |
| picture_id | int(1) | NO | | 0 | |
| gender | tinyint(4) | NO | | 0 | |
| date_birth | date | YES | | NULL | |
| education | tinyint(4) | NO | | 0 | |
| income_range | tinyint(4) | NO | | 0 | |
| li_first_name | varchar(200) | NO | | | |
| li_last_name | varchar(200) | NO | | | |
| li_street | varchar(200) | NO | | | |
| li_street2 | varchar(200) | NO | | | |
| li_city | varchar(200) | NO | | | |
| li_state | varchar(200) | NO | | | |
| li_country_id | varchar(200) | NO | | | |
| li_postal | varchar(200) | NO | | | |
| li_phone | varchar(200) | NO | | | |
| li_governmentid | varchar(200) | NO | | | |
| li_gov_filename | varchar(50) | NO | | | |
| li_gov_id_number | varchar(30) | NO | | | |
| li_gov_driver_state | varchar(10) | NO | | | |
| li_gov_country | varchar(50) | NO | | | |
| li_gov_expdate | varchar(50) | NO | | | |
| li_governmentdate | int(11) | NO | | 0 | |
| li_staff_id | int(11) | NO | | 0 | |
| li_verify_date | int(11) | NO | | 0 | |
| private_key | varchar(100) | NO | | | |
| private_key_enable | int(11) | NO | | 0 | |
| show_displayname | tinyint(1) | YES | | 0 | |
| legal_status | int(11) | NO | MUL | NULL | |
| legal_change_reason | text | NO | | NULL | |
| legal_update_time | timestamp | NO | MUL | CURRENT_TIMESTAMP | |
| legal_expire_date | date | NO | | 0000-00-00 | |
| legal_wf_update_id | int(11) | YES | MUL | NULL | |
| legal_gov_update_id | int(11) | YES | MUL | NULL | |
| legal_info_update_id | int(11) | YES | MUL | NULL | |
| legal_verifications_update_id | int(11) | YES | MUL | NULL | |
| ewallet_log_update_id | int(11) | YES | MUL | NULL | |
| legal_lang | tinyint(4) | YES | MUL | NULL | |
+-------------------------------+--------------+------+-----+-------------------+----------------+
65 rows in set (0.00 sec)

Answer 1

Even though they aren't directly related, you can still perform a JOIN:
UPDATE
members_info mb JOIN
members_info ma ON ma.member_info_id = 98089
SET
mb.Name = ma.Name,
mb.Info = ma.Info
-- Etc...
WHERE
mb.member_info_id = 236505

Answer 2

If you are only looking to update a single member (B) with A's information, then...
UPDATE members_info member_B, (SELECT DISTINCT ID, Column_1, Column_2, Column_X
FROM members_info
WHERE id = '98089') member_A
SET member_B.Column_1 = member_A.Column_1, member_B.Column_2 = member_A.Column_2
WHERE member_B.id = '236505'
**Note: Untested.