Re: Select CASE when null ?

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От Camilo Sperberg
Тема Re: Select CASE when null ?
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Msg-id f05190a90901141323v13d4df29sf12322dd0d9aa481@mail.gmail.com
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Ответ на Re: Select CASE when null ?  (Mark Styles <postgres@lambic.co.uk>)
Список pgsql-general
On Wed, Jan 14, 2009 at 17:56, Mark Styles <postgres@lambic.co.uk> wrote:

SELECT COALESCE(mid,0) AS mid, COALESCE(id_group,0) AS id_group
FROM users
WHERE username = 'test'
UNION
SELECT 0, 0
WHERE NOT EXISTS (SELECT 1 FROM users WHERE username = 'test');


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Mark
http://www.lambic.co.uk


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wow amazing :D that did the trick !!!! :D

I had tried COALESCE but I had not thought at all in an union...

Thanks a lot Mark for your incredible fast and fantastic response !

Greetings ;)


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