Behind the scenes, date/times are really numbers. They are decimal numbers that represent the number of days that have passed since a given starting date. This starting date, the zero date, is different in SQL than it is in Coldfusion, but the theory still holds.
One day = 1 Two days = 2 One and a half days = 1.5 One and a quarter days = 1.25 If you play around with CreateTimeSpan() in ColdFusion, you will see this. CreateTimeSpan( 1, 0, 0, 0 ) === 1. So, by adding one to a date, you are adding a single day (since you are adding one to the underlying decimal value). Here are some related links if you are interested: http://www.bennadel.com/blog/226-ColdFusion-Date-Math-Faster-Than-Date-M ethods-And-Other-Date-Math-Ramblings.htm http://www.bennadel.com/blog/311-Ask-Ben-Looping-Through-The-Days-In-A-M onth.htm http://www.bennadel.com/blog/285-Caution-ColdFusion-Zero-Date-vs-SQL-Zer o-Date.htm Cheers! ...................... Ben Nadel Certified Advanced ColdFusion MX7 Developer www.bennadel.com Need ColdFusion Help? www.bennadel.com/ask-ben/ -----Original Message----- From: Chad Gray [mailto:[EMAIL PROTECTED] Sent: Tuesday, April 03, 2007 10:41 AM To: CF-Talk Subject: RE: SQL question On the (@date + 1) how do you know it is adding one day? Out of curiosity how do you add one year? Thanks for the clean elegant solution. I will try it out. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Deploy Web Applications Quickly across the enterprise with ColdFusion MX7 & Flex 2 Free Trial http://www.adobe.com/products/coldfusion/flex2/?sdid=RVJU Archive: http://www.houseoffusion.com/groups/CF-Talk/message.cfm/messageid:274436 Subscription: http://www.houseoffusion.com/groups/CF-Talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4
