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Discuss content posted by david.wright-948385...
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set ansi_nulls
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ronmoses
ronmoses
Posted Wednesday, June 02, 2010 7:39 AM
SSChasing Mays
Group: General Forum Members
Last Login: Today @ 5:38 AM
Points: 648,
Visits: 685
david.wright-948385 (6/2/2010)
Absolutely right - my bad. I'm afraid my brain is wired to never ever use '=' or '<>' where either side can be null, even if I'm trying to make a point about exactly that
The really funny thing is, as I'm re-reading the question several times trying to find the "gotcha," I thought to myself, "You know, I'll bet the author meant for one of these to say '= NULL' and goofed up."
-----
a haiku...
NULL is not zero
NULL is not an empty string
NULL is the unknown
Post #931337
Rose Bud
Rose Bud
Posted Wednesday, June 02, 2010 8:56 AM
Ten Centuries
Group: General Forum Members
Last Login: Thursday, May 16, 2013 9:42 AM
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Your finger muscle memory wouldn't allow you to write null=null! FWIW, I think the error helps emphasize the point about being careful when dealing with nulls.
Post #931421
Daniel Bowlin
Daniel Bowlin
Posted Wednesday, June 02, 2010 11:05 AM
SSCrazy
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I read this carefully and thought to myself, "gee, why didn't the author use = Null, that would have been a better question." I answered the question, and read the forum responses....and lo and behold it was supposed to be = Null. Usually this is the sort of thing I will get wrong because I frequently read intent into the question and answer according to intent.
Post #931517
SQLRNNR
SQLRNNR
Posted Wednesday, June 02, 2010 1:59 PM
SSCoach
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Thanks for the nice question.
Jason
AKA CirqueDeSQLeil
I have given a name to my pain...
MCM SQL Server 2008
SQL RNNR
Posting Performance Based Questions - Gail Shaw
Posting Data Etiquette - Jeff Moden
Hidden RBAR - Jeff Moden
VLFs and the Tran Log - Kimberly Tripp
Post #931657
cengland0
cengland0
Posted Thursday, June 03, 2010 5:06 AM
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I too got it right but for the wrong reason. I knew that using Null is Null will always be true (regardless of the setting of ANSI_NULLS) so that's why I got the right answer not because of what the ANSI_NULLS setting was during the creation of the stored procedure. I learned something today and glad I guessed correctly.
Post #931991
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