Re: timestamp check - Mailing list pgsql-general

Yes,But i need to display last digits also 

like 1500 08-09-10.738901

On Mon, Jul 13, 2015 at 8:18 PM, Francisco Olarte <folarte@peoplecall.com> wrote:

Hi Ramesh:

On Sun, Jul 12, 2015 at 8:21 AM, Ramesh T <rameshparnanditech@gmail.com> wrote:

postgres query 

select current_timestamp- 

TO_TIMESTAMP(to_char(DATE1, 'YYYY-MM-DD HH24'|| ' '||'MI'||' '||'SS')||' '||(SELECT utc_offset  FROM pg_catalog.pg_timezone_names  

WHERE name=DATETIMEZOZE1)   , ''YYYY-MM-DD HH24'||' '||'MI'||' '||'SS')::timestamptz

getting result..

But in oracle using systimestamp,to_timestamptz and SS TZH is not supporting  to_timestamp in postgres.

​I do not know about Oracle, but in postgres you are substracting to timestamps ( current_timestamp - to_timestamp(whatever) ). This gives you an interval.​

result..

diffrence is days displaying in postgres query..i thnk something wrong. is it..?

​Days is displaying in postgres query because it is the default format to display intervals ( it's a little more complicated, but related ).

$ select '1500 days 8 hours 9 minutes 10 seconds'::interval;
      interval     
--------------------
 1500 days 08:09:10
(1 row)

If you want a particular format you should use the appropiate formatting functions, like to_char

$ select to_char('1500 days 8 hours 9 minutes 10 seconds'::interval,'DDD HH-MI-SS');
    to_char   
---------------
 1500 08-09-10
(1 row)

Or, you could try to change the default formatting, but this is generally incorrect.

Regards.

   Francisco Olarte.