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retrieve row number
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* retrieve row number
@ 2006-12-01 06:31 Pascal Tufenkji <ptufenkji@usj.edu.lb>
  2006-12-01 06:56 ` Re: retrieve row number A. Kretschmer <andreas.kretschmer@schollglas.com>
  0 siblings, 1 reply; 2+ messages in thread

From: Pascal Tufenkji @ 2006-12-01 06:31 UTC (permalink / raw)
  To: pgsql-sql

Hi,

 

Can I retrieve the row number in a select statement? 

For example : if I have the following table "foo"

 

col1 | col2

-----+-----

 a   | x

 b   | y

 c   | z

 

 

select ?? as row_number, col1, col2 from foo;

 

I should obtain the following result :

 

row_number | col1 | col2

-----------+------+-----

         1 | a   | x

         2 | b   | y

         3 | c   | z

 

 

Thank you

Pascal

^ permalink  raw  reply  [nested|flat] 2+ messages in thread

* Re: retrieve row number
  2006-12-01 06:31 retrieve row number Pascal Tufenkji <ptufenkji@usj.edu.lb>
@ 2006-12-01 06:56 ` A. Kretschmer <andreas.kretschmer@schollglas.com>
  0 siblings, 0 replies; 2+ messages in thread

From: A. Kretschmer @ 2006-12-01 06:56 UTC (permalink / raw)
  To: pgsql-sql

am  Fri, dem 01.12.2006, um  8:31:41 +0200 mailte Pascal Tufenkji folgendes:
> Hi,
> 
>  
> 
> Can I retrieve the row number in a select statement?
> For example : if I have the following table ?foo?
> I should obtain the following result :
> 
>  
> 
> row_number | col1 | col2
> -----------+------+-----
>          1 | a   | x
>          2 | b   | y
>          3 | c   | z


test=> create temporary sequence tmp_seq;
CREATE SEQUENCE
test=*> select nextval('tmp_seq') as row_number, col1, col2 from foo;
 row_number | col1 | col2
------------+------+------
          1 | a    | x
          2 | b    | y
          3 | c    | z
(3 rows)


-- 
Andreas Kretschmer
Kontakt:  Heynitz: 035242/47215,   D1: 0160/7141639 (mehr: -> Header)
GnuPG-ID:   0x3FFF606C, privat 0x7F4584DA   http://wwwkeys.de.pgp.net



^ permalink  raw  reply  [nested|flat] 2+ messages in thread


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2006-12-01 06:31 retrieve row number Pascal Tufenkji <ptufenkji@usj.edu.lb>
2006-12-01 06:56 ` A. Kretschmer <andreas.kretschmer@schollglas.com>

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