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From:William R. Mussatto Date:March 21 2001 4:48pm
Subject:Re: selecting null values
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On Wed, 21 Mar 2001, Peter Szekszardi wrote:

> Date: Wed, 21 Mar 2001 14:36:02 +0100 (CET)
> From: Peter Szekszardi <szekszardi@stripped>
> To: mysql@stripped
> Subject: selecting null values
> 
> Hi,
> 
> I have a database which has a text field (let's name it title). The field
> is NULL initially. Now I have about a hundred thousand records in the db,
> where the title field is NULL. I have to fill these NULL title fields with
> the appropriate data, so I have to select them one-by-one, calculate the
> title field, and update the data. So my query would be:
> 
> SELECT * FROM table WHERE title = NULL LIMIT 1;

I believe the syntax is not "title = NULL " but "title is NULL "
> 
> But it does not work. One of you wrote, that NULL is not equal with
> anything, not even with NULL. Could you please help me, what kind of
> select should I write in situations like this? In this particular case, I
> will do find a workaround, but I am curious, how to handle NULL values.
> 
> Regards,
> 
> Peter Szekszardi
> PortoLogic Ltd.
> Portal building, prime number generating, script hacking and more...
> The prime number of the day is 262559183
> 
> 
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Sincerely,

William Mussatto, Senior Systems Engineer
CyberStrategies, Inc
ph. 909-920-9154 ext. 27

Thread
query with <> or !=Gilles Dumangin20 Mar
  • Re: query with <> or !=Sinisa Milivojevic20 Mar
  • selecting null valuesPeter Szekszardi21 Mar
    • RE: selecting null valuesCal Evans21 Mar
    • Re: selecting null valuesroger westin21 Mar
    • Re: selecting null valuesGerald L. Clark21 Mar
    • Re: selecting null valuesWilliam R. Mussatto21 Mar
    • Re: selecting null valuesChihiro Hio21 Mar
    • Re: selecting null valuesPaul DuBois21 Mar
RE: selecting null valuesRick Emery21 Mar
RE: selecting null valuesChris M. Oson21 Mar