From: | phil campaigne <pcampaigne(at)charter(dot)net> |
---|---|
To: | Ragnar Hafstað <gnari(at)simnet(dot)is>, pgsql-general(at)postgresql(dot)org |
Subject: | Re: Problem with select statement |
Date: | 2005-02-21 17:52:40 |
Message-ID: | 421A1FE8.1080803@charter.net |
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Thread: | |
Lists: | pgsql-general |
Ragnar Hafstað wrote:
>On Sun, 2005-02-20 at 20:01 -0500, phil campaigne wrote:
>
>
>>Hi gnari,
>>I forgot one thing. I also need to restrict the selecct with two more
>>qualifiers
>>where contest_id =1 and team='Duke'
>>I'm confused where to put it in the select statement. I tried this but
>>it doesn't work:
>>
>>
>
>you dont say where these fit in. they can obviously not be in B,
>as that one did not include such columns.
>if they are columns of player or teamshare, then you could probably:
>
>select player_number,
> player_name,
> sum(a) as Asum,
> sum(c) as Csum,
> sum(t) as Tsum,
> coalesce(sum(a),0)+coalesce(sum(c),0)+coalesce(sum(t),0) as sumtotal
>from (
> select player_number,
> player_name,
> (select player_points where aspect='A') as A ,
> (select player_points where aspect='C') as C,
> (select player_points where aspect='T') as T
> from (
> select *
> from player as a,teamshare as b
> where a.player_number=b.player
> and contest_id=1 and team='Duke'
> ) as c
> ) as B
>group by player_number, player_name;
>
>
>gnari
>
>
>
>
>
Gnari,
Thanks, and hello to Iceland from Boston. The way you formated the text
is a lesson for me. It makes the code much more intuitive.... but
adding the phrase:
and contest_id=2 and teamshare.team='Duke'
as below produces results 8 times as large as the correct results.
select player_number,player_name,sum(a) as Asum,sum(c) as Csum,sum(t) as
Tsum,
coalesce(sum(a),0)+coalesce(sum(c),0)+coalesce(sum(t),0) as sumtotal
from ( select player_number, player_name, (select player_points where
aspect='A') as A ,(select player_points where aspect='C') as C, (select
player_points where aspect='T') as T from (select * from player as
a,teamshare
as b where a.player_number=b.player and teamshare.contest_id=2 and
teamshare.team='Duke' ) as c) as B group
by player_number, player_name;
NOTICE: Adding missing FROM-clause entry in subquery for table "teamshare"
player_number | player_name | asum | csum | tsum | sumtotal
---------------+-------------+------+------+------+----------
40 | R. Perkins | 2.16 | 2.64 | | 4.8
42 | S. Randolph | 6.48 | 7.92 | 12.8 | 27.2
(2 rows)
I did get this NOTICE that I don't understand:
NOTICE: Adding missing FROM-clause entry in subquery for table "teamshare"
I tried changing the select statement to be
select * from player as a *** and from *** teamshare as b
But that didn't work. Here are my table definitions:
Table "public.teamshare"
Column | Type | Modifiers
---------------+-----------------------+-----------
teamshare_id | integer | not null
possession_id | integer | not null
contest_id | integer | not null
team | character varying(8) | not null
cum_score | integer | not null
player | integer | not null
aspect | character(1) | not null
player_points | double precision |
organization | character varying(14) |
Indexes: teamshare_pkey primary key btree (teamshare_id)
Table "public.player"
Column | Type | Modifiers
---------------------+-----------------------+-----------
player_id | integer | not null
player_number | character varying(3) | not null
player_name | character varying(14) | not null
team | character varying(24) | not null
organization | character varying(12) | not null
player_compensation | integer |
Indexes: player_pkey primary key btree (player_id)
I can't think of any rationale for placing the qualifying phrase
anywhere else. Any Ideas?
thanks,
Phil
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