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MuSuL 08-16-2005 05:10 PM
Need help with a query
 
I'm looking to write a script that will change all the IP addy's of a usergroup when run. I kinda have an idea how to do it but not 100% sure. This is what I've come up with.

UPDATE post
SET ipaddress = '0.0.0.0'
WHERE userid in
(
SELECT post.userid
FROM [user] INNER JOIN post ON user.UserID = post.userid
WHERE groupid = 5
)

Would this work?

Colin F 08-16-2005 05:42 PM
Quote:
Originally Posted by MuSuL
I'm looking to write a script that will change all the IP addy's of a usergroup when run. I kinda have an idea how to do it but not 100% sure. This is what I've come up with.

UPDATE post
SET ipaddress = '0.0.0.0'
WHERE userid in
(
SELECT post.userid
FROM [user] INNER JOIN post ON user.UserID = post.userid
WHERE groupid = 5
)



Would this work?
As that uses subqueries, you'll have to check what version of mysql the server is running. Subqueries are only supported by more recent versions.

I also don't understand the brackets around user

Marco van Herwaarden 08-16-2005 08:50 PM
And in the subquery select it would be user.userid, not post.userid. Out of my had it is also usergroupid and not groupid.

MuSuL 08-16-2005 10:21 PM
Thanks for the help. The brackets were because I was running the query in Access to test.


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