Re: How to extract hour and minutes from a timestamp

Hi again :)

I already resolver my other problem but now i would like to extract both
time and hour from a timestamp in order to compare with a string.
Ex 2000-01-01 19:30:00
I want the result to be 19:30

With select substr(....) i can do this but that's not what i want.

I'm using python with postgres.
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On Fri, 2002-10-18 at 05:52, Tan ga wrote:
> Hi again :)
>
> I already resolver my other problem but now i would like to extract both
> time and hour from a timestamp in order to compare with a string.
> Ex 2000-01-01 19:30:00
> I want the result to be 19:30
>
> With select substr(....) i can do this but that's not what i want.
>
> I'm using python with postgres.

See:
http://www.ca.postgresql.org/users-lounge/docs/7.2/postgres/functions-formatting.html

Something like:

to_char( my.timestamp, 'YYYY-MM-DD HH24:MI')

Cheers,
Andrew.
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Tan ga,

> I already resolver my other problem but now i would like to extract
> both
> time and hour from a timestamp in order to compare with a string.
> Ex 2000-01-01 19:30:00
> I want the result to be 19:30

Check out "Functions and Operators" in the online user manual.

What you want is:

SELECT to_char(some_timestamp, 'HH:MI');

-Josh Berkus