> What if you have four concurrent users (or four hundred if > your app get popular!), what happens if user two gets user > three's id when she runs LAST_INSERT_ID()?
This is exactly why databases provide concurrency control. You should use it. > That's the one of the only reasons I can see for using > alternate keys. Whether it is a UUID created in Coldfusion > or someother unique value...you KNOW what it is...everytime, > because you set it, not the DB. That's great, as long as there are no other clients using the same database. Databases provide this functionality for a reason. Dave Watts, CTO, Fig Leaf Software http://www.figleaf.com/ Fig Leaf Training: Adobe/Google/Paperthin Certified Partners http://training.figleaf.com/ WebManiacs 2008: the ultimate conference for CF/Flex/AIR developers! http://www.webmaniacsconference.com/ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Adobe® ColdFusion® 8 software 8 is the most important and dramatic release to date Get the Free Trial http://ad.doubleclick.net/clk;160198600;22374440;w Archive: http://www.houseoffusion.com/groups/CF-Talk/message.cfm/messageid:301912 Subscription: http://www.houseoffusion.com/groups/CF-Talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=11502.10531.4
