mysql - Query to count how many times an ip is used with different accounts -

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i single query count how many different customer accounts use same ip log in.

+---------+-------------+------+-----+---------+----------------+ | field   | type        | null | key | default |          | +---------+-------------+------+-----+---------+----------------+ | info_id | int(11)     | no   | pri | null    | auto_increment | | afid    | int(11)     | no   |     | 0       |                | | access  | date        | no   |     | null    |                | | ip      | varchar(15) | no   |     |         |                | +---------+-------------+------+-----+---------+----------------+

afid customer id. every time log in row inserted table. have been trying nested selects without luck, , can think of. i'm on thinking :)

thanks in advance!

try this:

select count(distinct afid) afid_count yourtable ip = '....'

to list of used ips:

select     ip,     count(distinct afid) afid_count yourtable group ip having afid_count > 1 order afid_count desc

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