I want to update the values of one column in a table from '0' to '1', if either of four values in columns in another table are '1'. Somehow this doesn't seem to work and I was just wondering if anyone could help me get the code right or find a different way of doing it if it's not possible,
mysql_query("UPDATE members
INNER JOIN forum_banners ON members.id = forum_banners.userid
SET members.beta = '1' WHERE forum_banners.bebeta = '1' OR
forum_banners.bibeta = '1' OR forum_banners.cbeta = '1' OR
forum_banners.wbeta = '1'") or die(mysql_error());
That's what I tried, but it's not working, I suspect because of the OR. I tried having all updatings in different mysql_query bits, but that didn't work either.
You should be able to update from multiple table references. This is untested, but gives you an idea:
UPDATE
members, forum_banners
SET
members.beta = '1'
WHERE
members.id = forum_banners.userid
AND forum_banners.bebeta = '1'
OR forum_banners.bibeta = '1'
OR forum_banners.cbeta = '1'
OR forum_banners.wbeta = '1'
http://dev.mysql.com/doc/refman/5.0/en/update.html
Note "Multi-Table syntax"
Try
UPDATE
m
SET
m.beta = '1'
FROM
members m
INNER JOIN
forum_banners fb
ON m.id = fb.userid
WHERE
fb.bebeta = '1'
OR fb.bibeta = '1'
OR fb.cbeta = '1'
OR fb.wbeta = '1'"
Aliases also help make your syntax a little neater.
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