Transaction Deadlock When Using "autocommit"
Transaction is a big problem in MySQL --> here is what I have done Since the DB is InnoDB, I tried to "set autocommit=0" so that it can be rollback if it wants, and data will not be actually updated into the file disk unless a "commit" is performed.
I typed:
$autocommit = "SET autocommit=0";
$setcommit = mysql_query($autocommit);
echo "<font color = yellow> Setcommit = $setcommit </font><BR>";
and then it worked once, but then for the second time, when I go to mySQL and try to do something, it came an error of :
ERROR 1205: Lock wait timeout exceeded; Try restarting transaction
which is probably the deadlock problem...I have to release the lock by
i) show processlist; (and see which thread is sleeping)
ii) kill thread_id;
Does anyone know how to perform transaction with php using InnoDB?
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