Steven
Steven

Reputation: 25284

What's wrong with my MySQL statement?

UPDATE table1 SET announcer = ( SELECT memberid
FROM ( table1
JOIN users ON table2.username = table1.announcer
) AS a
WHERE a.username = table1.announcer )

#1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'a where a.username=table1.announcer)' at line 1

Upvotes: 0

Views: 134

Answers (2)

MindStalker
MindStalker

Reputation: 14864

You can also do the JOIN in the UPDATE

UPDATE announcements JOIN users
SET announcements.announcer=users.memberid
WHERE announcements.username=users.username;

Note: For safty reasons (until your sure announcers get copied over right) I'd instead create a new column, say announcerNew then

UPDATE announcements JOIN users
SET announcements.announcerNew=users.memberid
WHERE announcements.username=users.username;

Upvotes: 1

cletus
cletus

Reputation: 625037

Try:

UPDATE announcements a
SET announcer =
(SELECT memberid
FROM users u
WHERE u.username = a.announcer)

Upvotes: 1

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