On Wed, Feb 20, 2002 at 11:38:31AM +0100, [EMAIL PROTECTED] wrote: > > sql,query The above is for antispam filter.
I have a need for an interval data type. It would contain start and end of a certain time event. Since it is not possible to have two different events at the same place and at the same time, I want to ensure that there cannot exist two entries for which time interval would overlap with another entry's interval. I've done a simple routine in PHP which cheks if there is an overlaping entry in database and it inserts new entry only if it's 'safe'. Obviously, there is a problem if there are two entries, let's call them A and B, and A entry is made after B has done the checking but before B has made a new record. Any sugestions? Even sugestions for another free open source db would do. Sorry for my broken english. Thanks. --------------------------------------------------------------------- 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
