Hi, Mark Hennessy wrote: > I have decided to use MAX(tablename_index)+1 in advance of inserting the > record, as I want to use as little dbms-specific magic as possible and > this matches as close as I can figure the behavior of _seq in mSQL. > > I would be doing the following in the same thread in this order: > $id=SELECT MAX(tablename_index)+1; > INSERT into tablename VALUES($id,...); > > Would it be prudent to wrap a rw lock around this?
Yes. Unless you are 100% sure that you will never have 2 threads doing it at the same time ;) > > -- > Mark P. Hennessy [EMAIL PROTECTED] > Regards -- Joseph Bueno --------------------------------------------------------------------- Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail <[EMAIL PROTECTED]> To unsubscribe, e-mail <[EMAIL PROTECTED]> Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
