Re: Informix Certified Professional Program

}From: Ian Goddard <igoddard@netcomuk.co.uk> }Date: Wed, 12 Feb 1997 01:06:47 -0800 }X-Informix-List-Id: <news.33791> } }Walter S. Tyszka wrote: } }> According to Informix: NULL means unknown, so comparing anything to NULL }> will evaluate as true - since you can not tell for sure whether the two } ^^^^ }Since when? We went over this a few months ago. It evaluates to false. ^^^^^ Since when? I went over this earlier today, and it evaluates to unknown! }> values are different. Yours pedantically, Jonathan Leffler (johnl@informix.com) #include <disclaimer.h>