Re: How can I replace the year of the created_at column with the current year dynamically ?

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От Michael Paquier
Тема Re: How can I replace the year of the created_at column with the current year dynamically ?
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Msg-id CAB7nPqSkadfdvATvs9rE-8WJY6_pA+rAcS-GdRktWJEpScs0uQ@mail.gmail.com
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Ответ на How can I replace the year of the created_at column with the current year dynamically ?  (Arup Rakshit <aruprakshit@rocketmail.com>)
Ответы Re: How can I replace the year of the created_at column with the current year dynamically ?  (Arup Rakshit <aruprakshit@rocketmail.com>)
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On Wed, Jul 2, 2014 at 3:27 PM, Arup Rakshit <aruprakshit@rocketmail.com> wrote:
Here is my try :

staging::=> select  to_char(created_at,'DD/MM') || '/' || to_char(now(),'YYYY') as when from users;
    when    
------------
 24/02/2014
 28/02/2014
 02/03/2014
 01/03/2014
 04/03/2014
 02/03/2014
 06/03/2014
 07/05/2014
 02/06/2014
 06/06/2014
 20/02/2014
 20/02/2014
 20/02/2014
 20/06/2014
 20/02/2014
(15 rows)

Can the same be done using any other clever trick ? 
What is the data at your disposal when trying to select the current year? If it is a timestamp, simply use date_part:
=# select date_part('year', now());
 date_part
-----------
      2014
(1 row)
--
Michael

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