Re: When is a blank not a null or ''

From: Michael Kleiser <mkl(at)webde-ag(dot)de>
To: mike <mike(at)redtux1(dot)uklinux(dot)net>
Cc: Troels Arvin <troels(at)arvin(dot)dk>, pgsql-general(at)postgresql(dot)org
Subject: Re: When is a blank not a null or ''
Date: 2005-02-02 16:11:12
Message-ID: 4200FBA0.3040301@webde-ag.de
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Maybe other whitspace or non-printable-character.
Try:

SELECT first_name, '[' || work_email || ']', |ASCII(|work_email)|| FROM tb_contacts WHERE
tb_contacts.work_email <>'';

mike wrote:

>On Wed, 2005-02-02 at 11:31 +0100, Troels Arvin wrote:
>
>
>>On Wed, 02 Feb 2005 09:59:30 +0000, mike wrote:
>>
>>
>>
>>>SELECT first_name,work_email FROM tb_contacts WHERE
>>>tb_contacts.work_email <>'';
>>>
>>>However I get loads of blank email addresses coming up
>>>
>>>anyone any ideas
>>>
>>>
>>An idea: You have " "-values in your work_email column, i.e. work_email
>>values consisting of space(s).
>>
>>
>>
>
>nope
>
>SELECT work_email FROM tb_contacts WHERE tb_contacts.work_email ILIKE
>'% %';
> work_email
>------------
>(0 rows)
>
>
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