From: | Jayadevan M <Jayadevan(dot)Maymala(at)ibsplc(dot)com> |
---|---|
To: | "PostgreSQL Novice List" <pgsql-novice(at)postgresql(dot)org>, pgsql-novice-owner(at)postgresql(dot)org |
Subject: | SELECT counts |
Date: | 2010-07-21 09:16:54 |
Message-ID: | OF3D569B61.E52FEDB0-ON65257767.003243F5-65257767.00330BFC@ibsplc.com |
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Thread: | |
Lists: | pgsql-novice |
Hello all,
I have a table with id and status_v.
create table myt (id integer, status_v varchar(10));
insert into myt values (1,'I');
insert into myt values (1,'P');
insert into myt values (1,'T');
insert into myt values (2,'P');
User gets counts of status records, filtered on some status_v like this
test=# select count(*), status_v from myt where status_v in ('I','P','X')
group by status_v;
count | status_v
-------+----------
1 | I
2 | P
(2 rows)
Is there a way in which I can have the output as
1 | I
2 | P
0 | X
i.e., if there is not data, the count should be displayed as 0.
Regards,
Jayadevan
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Next Message | A. Kretschmer | 2010-07-21 09:43:12 | Re: SELECT counts |
Previous Message | A. Kretschmer | 2010-07-21 06:59:48 | Re: Select only active entries |