(But don't use my format string, it's very wrong!) On Thu, Jun 25, 2015 at 3:20 PM, Colin Lieberman <clieber...@turnitin.com> wrote:
> You may be looking for to_char: > > # select to_char( now() - '2015-06-25', 'YYYY-MM-DD HH24:mm:ss' ); > > to_char > --------------------- > 0000-00-00 15:00:43 > (1 row) > > http://www.postgresql.org/docs/9.4/static/functions-formatting.html > > On Wed, Jun 24, 2015 at 9:11 PM, litu16 <litumelen...@gmail.com> wrote: > >> This is my table... >> >> <http://postgresql.nabble.com/file/n5855074/screenshot.jpg> >> >> I would like to get the time difference between 'time_type = Lap' AND >> 'time_type = Start' in order to fill 'time_elapse'. Im almost sure that >> this >> code works... >> >> * CREATE OR REPLACE FUNCTION timediff() >> RETURNS trigger AS >> $BODY$ >> DECLARE >> t_ix real; >> >> BEGIN >> IF NEW.time_type = 'Lap' THEN >> SELECT t.time FROM table_ebscb_spa_log04 t WHERE t.fn_name = >> NEW.fn_name AND t.time_type = 'Start' ORDER BY t.stmtserial DESC LIMIT 1 >> INTO t_ix; >> IF NOT FOUND THEN >> RAISE EXCEPTION USING MESSAGE = 'There is not any previous >> row...'; >> ELSE >> NEW.time_elapse := t_ix - NEW.time; >> END IF; >> END IF; >> return NEW; >> END >> $BODY$ >> LANGUAGE plpgsql VOLATILE* >> >> But I don't know how to get the time difference between the two timestamps >> cells in a special format: (years/months/days >> hours:minutes:seconds:miliseconds) like this... >> >> * 0y/0m/0d 00:00:01.001* >> >> Is this possible?? >> Thanks Advanced. >> >> >> >> -- >> View this message in context: >> http://postgresql.nabble.com/Get-the-difference-between-two-timestamp-cells-but-in-a-special-format-in-PostgreSQL-tp5855074.html >> Sent from the PostgreSQL - general mailing list archive at Nabble.com. >> >> >> -- >> Sent via pgsql-general mailing list (pgsql-general@postgresql.org) >> To make changes to your subscription: >> http://www.postgresql.org/mailpref/pgsql-general >> > >
