Hi there,
What you probably want is
UPDATE temp
SET
QE = CASE WHEN QE = 1 THEN 6 END
QF = CASE WHEN QF = 1 THEN 5 END
WHERE
QA = 1 AND (QE 6 OR QF 5)
http://dev.mysql.com/doc/mysql/en/Control_flow_functions.html
Lachlan
-Original Message-
From: Mo Li [mailto:[EMAIL
The original problem was that CASE returns the result corresponding to the
matching condition. It isn't really a flow-control function.
I don't think Lachlan's suggestion is right either, though. Its missing a
comma, I think, but more importantly, it will set QE and QF to NULL whenever
they
