MySQL, if a value is in one of two columns, return the value from the other one

Posted by erikric on Stack Overflow See other posts from Stack Overflow or by erikric
Published on 2010-03-24T09:15:55Z Indexed on 2010/03/24 9:23 UTC
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sql

Hi,

This might be an easy one, but I'm not really experienced with sql.

I have a table with two user_id columns, user1 and user2. This table contains some compared values between the two users.

I want to send in an user id, and return all the id's from the other user when the sent user is either user1 or user2.

I guess some sort of if test would do the trick, but I don't know how to do this in SQL.

Cheers

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