Re: case expression

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От Raymond O'Donnell
Тема Re: case expression
Дата
Msg-id 48DABCD6.9020806@iol.ie
обсуждение исходный текст
Ответ на case expression  (Garry Saddington <garry@schoolteachers.co.uk>)
Ответы Re: case expression  ("Fernando Moreno" <azazel.7@gmail.com>)
Список pgsql-general
On 24/09/2008 23:22, Garry Saddington wrote:
>> Garry Saddington <garry@schoolteachers.co.uk> writes:
>>> CASE WHEN postcode ilike '%OO%' THEN ''
>>> END
>>> from addresses
>
> It does work but returns a column called case. How can I return the case
> column as 'postcode'?

...case when postcode ilike '%OO%' then '' end as postcode, ...

BTW, should you have an "else" clause in there? - What happens when the
comparison fails?

Ray.


------------------------------------------------------------------
Raymond O'Donnell, Director of Music, Galway Cathedral, Ireland
rod@iol.ie
Galway Cathedral Recitals: http://www.galwaycathedral.org/recitals
------------------------------------------------------------------

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