Re: getting NULL in auto_increment column

2003-02-24 Thread 1LT John W. Holmes
 Can you update an auto_increment with NULL in MySQL? Obviously if you
 try and put a NULL in directly it will increment to the next integer. 
 Is there some way to actually get a NULL in there instead of the
 integer?

No that's why you declare it NOT NULL when you create it.

---John Holmes...

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Re: getting NULL in auto_increment column

2003-02-24 Thread gerald_clark
Danny wrote:

Can you update an auto_increment with NULL in MySQL? Obviously if you
try and put a NULL in directly it will increment to the next integer. 
Is there some way to actually get a NULL in there instead of the
integer?

 

No.
Why would you want to?
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Re: getting NULL in auto_increment column

2003-02-24 Thread Danny
gerald_clark writes:
Danny wrote:

Can you update an auto_increment with NULL in MySQL? Obviously if you
try and put a NULL in directly it will increment to the next integer. 
Is there some way to actually get a NULL in there instead of the
integer?
  

No.
Why would you want to?

Because I have a column that is normally NULL since I normally don't
have information about that column. Occasionally I acquire information
about it and assign it to a category. AUTO_INCREMENT is useful because
I don't have to think about what the next new category will be. 
Instead of NULL I could use 0, if I don't have information, but NULL
would be the more natural state for lack of information. No biggy
though.

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RE: getting NULL in auto_increment column

2003-02-24 Thread Jennifer Goodie
It does not sound like your data is properly normalized.  You might want to
take a look at the way you have things set up, this sounds like it cause
problems later on.

-Original Message-
From: Danny [mailto:[EMAIL PROTECTED]
Sent: Monday, February 24, 2003 1:54 PM
To: [EMAIL PROTECTED]
Subject: Re: getting NULL in auto_increment column


gerald_clark writes:
Danny wrote:

Can you update an auto_increment with NULL in MySQL? Obviously if you
try and put a NULL in directly it will increment to the next integer.
Is there some way to actually get a NULL in there instead of the
integer?


No.
Why would you want to?

Because I have a column that is normally NULL since I normally don't
have information about that column. Occasionally I acquire information
about it and assign it to a category. AUTO_INCREMENT is useful because
I don't have to think about what the next new category will be.
Instead of NULL I could use 0, if I don't have information, but NULL
would be the more natural state for lack of information. No biggy
though.

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