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Article #252

Re: test with null content

#252
From: Bill Todd [TeamB]
Date: Fri, 20 Jun 2008 17:24
17 lines
1337 bytes
Adalberto Baldini wrote:

> .. and not (flart = '1') ..
> 
> right test should be
> 
> and (((flart is not null) and (not flart = '1')) or
>       (flart is null))
> 
> Adalberto

That  is correct. Null is a state meaning that there is no value. Null
is not equal to anything. Any test for equality that includes null will
be false.

-- 
Bill Todd (TeamB)
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