MySQL SWAP

[Julius]

Hello,

 

I have this table `forums`, in it: forum_id, forum_name, forum_position.

SELECT * FROM `forums`

1 Test 1
2 Test_two 2

Now, how can I swap those position numbers? I want 'Test' position to be 2 and 'Test_two' position to be 1.

I tried this:

UPDATE forums
SET forum_position=forum_position-1, forum_position = forum_position+1
WHERE forum_id = 2 AND forum_id = 1

but it didn't work.

[Julius]

Looks like I found solution.

UPDATE forums as f_one, forums as f_two
set f_one.forum_position=f_two.forum_position, 
f_two.forum_position=f_one.forum_position
where f_one.forum_id=1 AND f_two.forum_id=2