From: Stefan Becker <pgsql@yukonho.de>
To: pgsql-sql@postgresql.org
Subject: Re: regarding join
Date: Sat, 25 Mar 2006 11:57:35 +0100
Message-ID: <200603251157.35462.pgsql@yukonho.de> (raw)
In-Reply-To: <ad39daf90603242236w1f6a54ecx7ba4d1b24dfdc18c@mail.gmail.com>
References: <ad39daf90603242236w1f6a54ecx7ba4d1b24dfdc18c@mail.gmail.com>
given this.....
create table AA (id serial,name varchar(15));
create table BB (id serial,name varchar(15));
insert into AA (name) values ('1243f');
insert into AA (name) values ('asdfef');
insert into AA (name) values ('fdbsfd');
insert into AA (name) values ('btgrt');
insert into AA (name) values ('crregsewf');
insert into AA (name) values ('xedrgeef');
insert into BB (name) values ('243f');
insert into BB (name) values ('sdfef');
insert into BB (name) values ('dbsfd');
insert into BB (name) values ('tgrt');
insert into BB (name) values ('rregsewf');
insert into BB (name) values ('edrgeef');
you could try: (if you just need the one column "name")
select name from AA union select name from BB order by name;
a real nice way to go about this is:
create table CC (id serial,name varchar(15));
create table AA() inherits(CC);
create table BB() inherits(CC);
insert into AA (name) values ('1243f');
insert into AA (name) values ('asdfef');
insert into AA (name) values ('fdbsfd');
insert into AA (name) values ('btgrt');
insert into AA (name) values ('crregsewf');
insert into AA (name) values ('xedrgeef');
insert into BB (name) values ('243f');
insert into BB (name) values ('sdfef');
insert into BB (name) values ('dbsfd');
insert into BB (name) values ('tgrt');
insert into BB (name) values ('rregsewf');
insert into BB (name) values ('edrgeef');
=> select * from AA;
id | name
----+-----------
1 | 1243f
2 | asdfef
3 | fdbsfd
4 | btgrt
5 | crregsewf
6 | xedrgeef
(6 rows)
=> select * from BB;
id | name
----+----------
7 | 243f
8 | sdfef
9 | dbsfd
10 | tgrt
11 | rregsewf
12 | edrgeef
(6 rows)
=> select * from CC order by name;
id | name
----+-----------
1 | 1243f
7 | 243f
2 | asdfef
4 | btgrt
5 | crregsewf
9 | dbsfd
12 | edrgeef
3 | fdbsfd
11 | rregsewf
8 | sdfef
10 | tgrt
6 | xedrgeef
(12 rows)
by best regards,
Stefan
--
email: stefan@net-away.de
tel : +49 (0)6232-629542
länger klingeln lassen (Weiterleitung aktiv)
fax : +49 (0)6232-629544
http://www.net-away.de
Am Samstag, 25. März 2006 07:36 schrieb AKHILESH GUPTA:
> hi all,
> below I have created two tables in pgsql with field name as 'name' and 'id'
> as their datatype 'varchar(15)' and 'integer'.
>
> One of the table is:->
> chemical=> select * from test1;
> name | id
> -------+----
> akhil | 1
> b | 2
> c | 3
> d | 4
> e | 5
> f | 6
> (6 rows)
>
> Another table is:->
> chemical=> select * from test3;
> name | id
> ------+----
> ab | 1
> cd | 2
> ef | 3
> gh | 4
> (4 rows)
>
> i want the output as:->
> name | id
> -------+----
> akhil | 1 -----from test1 table
> ab | 1------from test2 table
> b | 2-----from test1 table
> cd | 2------from test2 table
> c | 3-----from test1 table
> ef | 3------from test2 table
> d | 4-----from test1 table
> gh | 4------from test2 table
> e | 5-----from test1 table
> f | 6-----from test1 table
>
> i have tried all the joins but it makes different fields for different
> tables.
> is there any way out for this kind of output??????????????????
> (plz reply asap)urgent.
>
> THANKS IN ADVANCE
>
> --
> Thanks & Regards,
> Akhilesh
> S/W Trainee (EDP),
> NUCHEM Pvt. Ltd.,
> Faridabad(Haryana)
> GSM:-(+919891606064)
>
> "FAILURES CAN BE FORGIVEN BUT AIMING LOW IS A CRIME"
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To: pgsql-sql@postgresql.org
Cc: pgsql@yukonho.de
Subject: Re: regarding join
In-Reply-To: <200603251157.35462.pgsql@yukonho.de>
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