On 20 June 2014 09:11, Arup Rakshit <arupraks...@rocketmail.com> wrote:
> Thanks for your answer. How to get the first day date of last 6 months from
> now then will be :
>
> yelloday_development=# select date_trunc('month', now()) - interval '5
> month' as first_month;
> first_month
> ---------------------------
> 2014-01-01 00:00:00+05:30
> (1 row)
>
> Is it correct ? I am new pgdql DB :-) Awesome DB it is...
It is.
You can also do it like this to get the first day of each of the last 6 months:
=# select date_trunc('month', now()) - interval '1 month' * n from
generate_series(1, 6) as i(n);
?column?
------------------------
2014-05-01 00:00:00+02
2014-04-01 00:00:00+02
2014-03-01 00:00:00+01
2014-02-01 00:00:00+01
2014-01-01 00:00:00+01
2013-12-01 00:00:00+01
(6 rows)
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