I have a field representing the chances the user has to get a
password right, which is initially 3. I would like, if possible in a
single query, to be able to decrement it if it's still > 0 and return
the value. Something like this:
UPDATE table
SET chances = IF(chances > 0, chances - 1, 0)
WHERE id = xxx
SELECT chances
FROM table
WHERE id = xxx
Is there some tidy way to do that with, say, a subquery (something to
which I'm still quite new, having been stuck with MySQL 3 until
recently)? I don't even know for certain that I have the IF syntax
right, but I think I have.
I'm using MySQL 5, btw.
--
Cheers... Chris
Highway 57 Web Development -- http://highway57.co.uk/
Never trust a man who, when left alone in a room
with a tea cosy, doesn't try it on.
-- Billy Connolly
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