Re: IF function?

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От Erik Jones
Тема Re: IF function?
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Msg-id 827E6F59-5E51-4B6A-8D2C-7C2F91371895@myemma.com
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Ответ на Re: IF function?  (David Fetter <david@fetter.org>)
Список pgsql-general
On May 1, 2007, at 12:57 AM, David Fetter wrote:

> On Mon, Apr 30, 2007 at 10:51:36PM -0700, novnov wrote:
>>
>> Does postgresql have a built in IF function that allows one to eval a
>> condition and return one or another value? Like:
>>
>> IIF(mybooleanfield = true, "It's true", "It's not true")
>
> It has CASE, as in
>
> CASE foo WHEN true THEN 'It''s true' ELSE 'It''s not true' END;
>

Or, for simple binary conditions like that:

CASE WHEN foo is TRUE
   THEN "it's true"
   ELSE "it's not true"
END

erik jones <erik@myemma.com>
software developer
615-296-0838
emma(r)




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