Thread: sql question

sql question

From

Steven Verhoeven

Date:

14 March 2005, 05:26:27

Hi all

My table definition :

id | fref | mref ------+-----------+---------- 1 | 23 | 25 2 | 24 | 28 3 | 25 | 31 4 | 26 | 34

My problem :
i need a query that results in this :

id | ref ------+---------- 1 | 23 1 | 25 2 | 24 2 | 28 3 | 25 3 | 31 4 | 26 4 | 34

Do I need a crosstab-query ?
Who can help me ?

--
A computer is like an airconditioner. When windows open, it stops working !

-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --

Steven Verhoeven, ICT Support Engineer

Department for Molecular Biomedical Research (DMBR) VIB - Ghent University 'Fiers-Schell-Van Montagu' building Technologiepark 927B - 9052 Ghent (Zwijnaarde) Belgium
Tel : +32-(0)9-33-13.606 Fax : +32-(0)9-33-13.609	E-mail : Steven.Verhoeven@dmbr.UGent.be URL : http://www.dmbr.UGent.be

Re: [GENERAL] sql question

From

"Vincent Hikida"

Date:

14 March 2005, 05:38:31

SELECT t1.id

, t1.fref

FROM t1

UNION ALL

SELECT t2.id

, t2.mref

FROM t2

----- Original Message -----
From: Steven Verhoeven
To: pgsql-general@postgresql.org ; pgsql-novice@postgresql.org
Sent: Friday, March 11, 2005 4:36 AM
Subject: [GENERAL] sql question

Hi all

My table definition :

id | fref | mref ------+-----------+---------- 1 | 23 | 25 2 | 24 | 28 3 | 25 | 31 4 | 26 | 34

My problem :
i need a query that results in this :

id | ref ------+---------- 1 | 23 1 | 25 2 | 24 2 | 28 3 | 25 3 | 31 4 | 26 4 | 34

Do I need a crosstab-query ?
Who can help me ?

--
A computer is like an airconditioner. When windows open, it stops working !
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
Steven Verhoeven, ICT Support Engineer

Department for Molecular Biomedical Research (DMBR)
VIB - Ghent University 'Fiers-Schell-Van Montagu' building
Technologiepark 927B - 9052 Ghent (Zwijnaarde)
Belgium
Tel : +32-(0)9-33-13.606
Fax : +32-(0)9-33-13.609 E-mail : Steven.Verhoeven@dmbr.UGent.be
URL : http://www.dmbr.UGent.be

Re: [GENERAL] sql question

From

"Vincent Hikida"

Date:

14 March 2005, 05:42:35

OOPs.

I mean

SELECT t1.id

, t1.fref

FROM t1

UNION ALL

SELECT t1.id

, t1.mref

FROM t1

----- Original Message -----
From: Vincent Hikida
To: Steven Verhoeven ; pgsql-general@postgresql.org ; pgsql-novice@postgresql.org
Sent: Sunday, March 13, 2005 6:34 PM
Subject: Re: [NOVICE] [GENERAL] sql question

SELECT t1.id
              , t1.fref
    FROM t1
UNION ALL
SELECT t2.id
              , t2.mref
    FROM t2

----- Original Message -----
From: Steven Verhoeven
To: pgsql-general@postgresql.org ; pgsql-novice@postgresql.org
Sent: Friday, March 11, 2005 4:36 AM
Subject: [GENERAL] sql question

Hi all

My table definition :

   id | fref      | mref ------+-----------+---------- 1   |     23    |   25 2   |     24    |   28 3   |     25    |   31 4   |     26    |   34

My problem :
i need a query that results in this :

   id |    ref ------+---------- 1   |     23   1   |     25 2   |     24 2   |     28 3   |     25    3   |     31 4   |     26    4   |     34

Do I need a crosstab-query ?
Who can help me ?

--
A computer is like an airconditioner. When windows open, it stops working !
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
Steven Verhoeven, ICT Support Engineer

Department for Molecular Biomedical Research (DMBR)
VIB - Ghent University 'Fiers-Schell-Van Montagu' building
Technologiepark 927B - 9052 Ghent (Zwijnaarde)
Belgium
Tel : +32-(0)9-33-13.606
Fax : +32-(0)9-33-13.609 E-mail : Steven.Verhoeven@dmbr.UGent.be
URL : http://www.dmbr.UGent.be

Re: [GENERAL] sql question

From

Klint Gore

Date:

21 March 2005, 06:16:25

On Fri, 11 Mar 2005 13:36:17 +0100, Steven Verhoeven
<Steven.Verhoeven@dmbr.UGent.be> wrote:
> Hi all
>
> My table definition :
>
>    id | fref      | mref
> ------+-----------+----------
>   1   |     23    |   25
>   2   |     24    |   28
>   3   |     25    |   31
>   4   |     26    |   34
>
> My problem :
> i need a query that results in this :
>
>    id |    ref
> ------+----------
>   1   |     23
>   1   |     25
>   2   |     24
>   2   |     28
>   3   |     25
>   3   |     31
>   4   |     26
>   4   |     34
>
>
> Do I need a crosstab-query ?

select id, fref from mytable
union all
select id, mref from mytable
order by 1,2

klint.

+---------------------------------------+-----------------+
: Klint Gore                            : "Non rhyming    :
: EMail   : kg@kgb.une.edu.au           :  slang - the    :
: Snail   : A.B.R.I.                    :  possibilities  :
: Mail      University of New England   :  are useless"   :
:           Armidale NSW 2351 Australia :     L.J.J.      :
: Fax     : +61 2 6772 5376             :                 :
+---------------------------------------+-----------------+

Re: [GENERAL] sql question

From

Russell Smith

Date:

21 March 2005, 06:17:59

On Fri, 11 Mar 2005 11:36 pm, Steven Verhoeven wrote:
> Hi all
>
> My table definition :
>
>    id | fref      | mref
> ------+-----------+----------
>   1   |     23    |   25
>   2   |     24    |   28
>   3   |     25    |   31
>   4   |     26    |   34
>
> My problem :
> i need a query that results in this :
>
>    id |    ref
> ------+----------
>   1   |     23
>   1   |     25
>   2   |     24
>   2   |     28
>   3   |     25
>   3   |     31
>   4   |     26
>   4   |     34
>
SELECT id, fref as ref FROM table
UNION ALL
SELECT id, mref as ref FROM table;

Should do the trick.

>
> Do I need a crosstab-query ?
> Who can help me ?
>
>