Re: LEFT OUTER JOIN issue

Hi,
> SELECT ct.dat,ct.heur,hp.datmesure,hp.heuremesure,hp.t FROM
calendar_temp as ct
> LEFT OUTER JOIN h_part as hp
> ON ct.dat = hp.datmesure
> AND ct.heur = hp.heuremesure
> WHERE
> hp.poste_idposte = 275
> ORDER BY ct.dat, ct.heur

> dat heur datmesure heuremesure t
> -----------------------------------------------------------
> 15/03/2008 0:00 15/03/2008 0:00 8,3
> 15/03/2008 3:00 15/03/2008 3:00 12
> 15/03/2008 6:00 15/03/2008 6:00 15
> 15/03/2008 9:00 15/03/2008 9:00 18
> 15/03/2008 12:00 null null null
> 15/03/2008 15:00 null null null

Would this work?
SELECT ct.dat,ct.heur,hp.datmesure,hp.heuremesure,hp.t FROM calendar_temp
as ct
LEFT OUTER JOIN h_part as hp
ON ct.dat = hp.datmesure
AND ct.heur = hp.heuremesure
WHERE
coalesce(hp.poste_idposte,275) = 275
ORDER BY ct.dat, ct.heur

dat | heur | datmesure | heuremesure | t
------------+----------+------------+-------------+------
2008-03-15 | 00:00:00 | 2008-03-15 | 00:00:00 | 8.3
2008-03-15 | 03:00:00 | 2008-03-15 | 03:00:00 | 12.0
2008-03-15 | 06:00:00 | 2008-03-15 | 06:00:00 | 15.0
2008-03-15 | 09:00:00 | 2008-03-15 | 09:00:00 | 18.0
2008-03-15 | 12:00:00 | | |
2008-03-15 | 15:00:00 | | |
(6 rows)

Regards,
Jayadevan

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