Chris wrote:
Hi,
I'm trying to get extract() to always return the number of hours between
two time intervals, ala:
=> create table t1(timestart timestamp, timeend timestamp);
=> insert into t1(timestart, timeend) values ('2010-01-01 00:00:00',
'2010-01-02 01:00:00');
=> select timeend - timestart from t1;
?column?
----------------
1 day 01:00:00
(1 row)
to return 25 hours.
I ended up with
select extract('days' from x) * 24 + extract('hours' from x) from
(select (timeend - timestart) as x from t1) as y;
mainly because t1 is rather large so I didn't want to run the end -
start calculation multiple times.
--
Postgresql & php tutorials
http://www.designmagick.com/
--
Sent via pgsql-sql mailing list (pgsql-sql@postgresql.org)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-sql
