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From:Randy Chrismon Date:September 15 2003 3:00pm
Subject:Does NULL == ""?
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The MySQL documentation confuses me a bit. If I create a table with
property NOT NULL and default "", does that mean that a record with a
column so defined will have a zero-length string in that column if I
don't provide a value? I guess what I'm asking is whether there's a
difference between a field with NULL in it and a field with a
zero-length ("") string in it.

Thanks. 

Randy
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