Re: Informix Certified Professional Program

} I On 6 Feb 1997 13:48:21 -0500, } David_Coburn/ISG/WVUS/WorldVision_at_WVUS-NOTES@wvccg.wvus.org (David } Coburn/ISG/WVUS/WorldVision) wrote: } < STUFF DELETED HERE > } } I reviewed what was likely one of the early tests which asserted, } among other things that a space and a NULL are equivalent. I noted 73 } questions that were either flat out wrong or ambiguous. Maybe the } test is now the greatest thing in the world to determine someone } proficiency with Informix. } } And I could be wrong } } } NAH } } } Do you mean to say that a space and a NULL are NOT equivalent? 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 values are different. -- Regards, Walter S. Tyszka (wstyszka@ingr.com) * Standard disclaimers apply *