Ok but you haven't specify that and in your example there is no similar use
one solution is to change LastUpdate type and use timestamp.
to insert you make :
insert into test."tableProd" values (100, '2004-05-01 02:52:12') but it exists other format for time....see postgresql
docfor different type (here the french version http://traduc.postgresqlfr.org/pgsql-fr/datatype-datetime.html)
With timestamp the accuracy is better, you have until second.
-----Message d'origine-----
De : Richard Huxton [mailto:dev@archonet.com]
Envoy� : vendredi 15 avril 2005 15:42
� : GIROIRE, Nicolas (COFRAMI)
Cc : Alex; pgsql-general@postgresql.org
Objet : Re: [GENERAL] SQL Question
GIROIRE, Nicolas (COFRAMI) wrote:
> For the first request (How can i select only the newest record for each ProdId ?), you can do :
>
> select * from test."tableProd" u
> where u."LastUpdate" = (select max(t."LastUpdate")
> from test."tableProd" t
> where u."ProdId" = t."ProdId")
Although this only guarantees one row if LastUpdate is unique for every
ProdId.
--
Richard Huxton
Archonet Ltd
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