>-----Original Message-----
>From: Tompkins Neil [mailto:neil.tompk...@googlemail.com]
>Sent: Wednesday, March 02, 2011 6:00 AM
>To: [MySQL]
>Subject: Query help
>
>Hi
>
>I've the following basic table
>
>login_id
>email_address
>ip_address
>
>I want to extract all records from this table in which a user has used the
>same IP address but different email address to login ?
>
>Thanks,
>Neil
[JS] I haven't looked at my code lately, but I'm pretty sure that
SELECT
ip_address
FROM
basic_table
GROUP BY
ip_address
HAVING
COUNT(*) > 1;
is what you want. You don't need to group on login_id. And, as Claudio said,
SELECT
ip_address, GROUP_CONCAT(login_id, ', ') AS list_of_login_ids
will give you the IP addresses as well.
Regards,
Jerry Schwartz
Global Information Incorporated
195 Farmington Ave.
Farmington, CT 06032
860.674.8796 / FAX: 860.674.8341
E-mail: je...@gii.co.jp
Web site: www.the-infoshop.com
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