Re: retrieve row number

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)


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Andreas Kretschmer
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