Re: Violation of NOT NULL

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От
Fran Fabrizio
Тема
Re: Violation of NOT NULL
Дата
в 15:07:11
Msg-id
3CED3215.70308@mmrd.com
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Дерево обсуждения
Violation of NOT NULL "Wm. G. Urquhart" <wgu@wurquhart.co.uk>
Re: Violation of NOT NULL Tom Lane <tgl@sss.pgh.pa.us>
>
>
>>With that said if '' does != NULL then what does? Just NULL? In my book
>>NULL means undefined and IMHO you can't get more undefined than ''!
>>
To me, '' is very defined.  You're explicitly telling something to be 
set to the empty string.  It has a definite value - "empty string". 
 NULL implies that you have no information whatsoever to determine what 
the value is.

That's just me. I was always bothered that Oracle did consider empty 
strings to be NULLs.  =)

-Fran


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