From: | "Robby Slaughter" <webmaster(at)robbyslaughter(dot)com> |
---|---|
To: | "Giorgio A(dot)" <jh(at)libero(dot)it>, <pgsql-novice(at)postgresql(dot)org> |
Subject: | RE: COUNT doesn't shows items with 0 occurrance |
Date: | 2001-07-17 16:14:19 |
Message-ID: | EPEHLKLEHAHLONFOKNHNIEPCDCAA.webmaster@robbyslaughter.com |
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Thread: | |
Lists: | pgsql-novice |
Giorgio,
Sounds like (but correct me if I'm wrong) you have a table like:
pieces
--------
hammer
nails
hammer
screws
ruler
If you do a select count(*) on this table and include a group by,
it's just going to give you the statisitcs
hammer 2
nails 1
screws 1
ruler 1
So I'm not really sure what you're asking. Maybe you could give
an example of what is in your table and what you are trying to
get out?
-Robby
-----Original Message-----
From: pgsql-novice-owner(at)postgresql(dot)org
[mailto:pgsql-novice-owner(at)postgresql(dot)org]On Behalf Of Giorgio A.
Sent: Tuesday, July 17, 2001 10:01 AM
To: pgsql-novice(at)postgresql(dot)org
Subject: [NOVICE] COUNT doesn't shows items with 0 occurrance
hi all,
i have this little problem: when i do a
SELECT COUNT (*) AS number, pieces
FROM hardware
GROUP BY pieces
if a pieces has 'number = 0' it's not shown in the result report ... how can
i fix this, having as a result the whole list of my hardware pieces ?
tnx !
have a nice day
Giorgio A.
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