Search Postgresql Archives

Re: Conditional on Select List

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Fernando,

the "IF" function is called

CASE
WHEN condition THEN result
      [WHEN ...]
      [ELSE result]
 END

read about it at
http://www.postgresql.org/docs/8.3/static/functions-conditional.html

best wishes,

Harald


On Tue, May 13, 2008 at 5:52 PM, Fernando <fernando@xxxxxxxxxx> wrote:
>
>  Is it possible to do this?
>
>  SELECT IF(COUNT(colname) > 0, TRUE, FALSE) AS colname FROM table;
>
>  What I want is to return a boolean, but when I tried SELECT
> COUNT(colname)::BOOLEAN FROM table; it says it cannot cast bigint to
> boolean.
>
>  Is there such IF function or do I have to create my own.
>
>  Thank you.
>



-- 
GHUM Harald Massa
persuadere et programmare
Harald Armin Massa
Spielberger Straße 49
70435 Stuttgart
0173/9409607
fx 01212-5-13695179
-
EuroPython 2008 will take place in Vilnius, Lithuania - Stay tuned!


[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Index of Archives]     [Postgresql Jobs]     [Postgresql Admin]     [Postgresql Performance]     [Linux Clusters]     [PHP Home]     [PHP on Windows]     [Kernel Newbies]     [PHP Classes]     [PHP Books]     [PHP Databases]     [Postgresql & PHP]     [Yosemite]
  Powered by Linux