Question

Having a problem with this query, anyone know the problem?

INSERT INTO options
  (grouptogether) 
VALUES 
  ('0') 
WHERE userid = '2' ON DUPLICATE KEY UPDATE grouptogether = '0';

INSERT INTO options 
  (grouptogether) 
VALUES 
  ('0') 
ON DUPLICATE KEY UPDATE grouptogether = '0' 
WHERE userid = '2';

I tried both combinations of moving the where clause, but that doesn’t seem to do it.

Answer 1

INSERT queries do not have WHERE clauses. In an INSERT INTO...ON DUPLICATE KEY UPDATE query the row which gets updated is the row in which there was a key collision; you do not need to specify the row by a WHERE clause.

You probably meant to do something like this:

INSERT INTO options
  (userid, grouptogether) 
VALUES 
  (2, '0') 
ON DUPLICATE KEY UPDATE grouptogether = VALUES(grouptogether)