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From:Bob Hall Date:September 16 2003 3:46am
Subject:Re: Does Null == ""?
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On Mon, Sep 15, 2003 at 10:33:27PM -0400, Bruce Feist wrote:
> if you stick to the natural meaning, that doesn't happen; integer and 
> other values have precise and obvious natural meanings.  NULL does not.

Integers and NULL are exactly alike it this regard. Neither has 
a natural meaning; their meanings are complete arbitrary. There's 
nothing about the symbol "6" that makes it the natural designation 
for "six". You wouldn't know that it stood for "six" unless you had 
been taught. What makes integers and NULL useful is that their 
meanings are conventional. The problem with a zero-length string is 
that it has no conventional meaning.

Bob Hall
Thread
Does NULL == ""?Randy Chrismon15 Sep
  • Re: Does NULL == ""?Bruce Feist15 Sep
  • RE: Does NULL == ""?Mark Richards15 Sep
  • Re: Does NULL == ""?Brent Baisley15 Sep
    • Re: Does NULL == ""?Keith C. Ivey15 Sep
  • Re: Does NULL == ""?Paul DuBois15 Sep
Re: Does NULL == ""?Alec.Cawley15 Sep
  • RE: Does NULL == ""?Mark Richards15 Sep
Re: Does Null == ""?Randy Chrismon15 Sep
  • RE: Does Null == ""?Mark Richards15 Sep
  • Re: Does Null == ""?Bob Hall16 Sep
    • Re: Does Null == ""?Bruce Feist16 Sep
      • Re: Does Null == ""?Dan Nelson16 Sep
        • Re: Does Null == ""?Bruce Feist16 Sep
          • Re: Does Null == ""?Bob Hall16 Sep
        • Re: Does Null == ""?Bob Hall16 Sep
      • RE: Does Null == ""?Jon Frisby16 Sep
        • Re: Does Null == ""?Bruce Feist16 Sep
          • RE: Does Null == ""?Jon Frisby16 Sep
            • Re: Does Null == ""?Bruce Feist16 Sep
              • RE: Does Null == ""?Jon Frisby16 Sep
              • Re: Does Null == ""?Bob Hall17 Sep
        • Re: Does Null == ""?Bob Hall16 Sep
      • Re: Does Null == ""?Bob Hall16 Sep
    • Re: Does Null == ""?Bob Hall17 Sep
      • Re: Does Null == ""?Bruce Feist18 Sep
        • Re: Does Null == ""?Bob Hall18 Sep
  • Re: Does Null == ""?Haydies18 Sep
    • Re: Does Null == ""?Bob Hall18 Sep