Thread: selecting entire row on which one field is the minimum

selecting entire row on which one field is the minimum

From
edouard.boucher@free.fr
Date:
Hi,

i have a table with 2 fields, let's say A and B, both integers.
i would like to select all the A for which the B are minimum

i'm not sure i am clear, so here is an exemple :

A | B
1 | 5
2 | 2
3 | 3
4 | 2
5 | 2

in this situation, the query should return (2, 4, 5)
as it is very easy to ordre a table, i tought this query would be easy
too, but it is more difficult than it looks like.

thanks for help


Edouard Boucher


Re: selecting entire row on which one field is the minimum

From
Rod Taylor
Date:
Something like this:

SELECT a FROM table WHERE B = (SELECT min(B) FROM table);


On Tue, 2003-05-20 at 21:16, edouard.boucher@free.fr wrote:
> Hi,
>
> i have a table with 2 fields, let's say A and B, both integers.
> i would like to select all the A for which the B are minimum
>
> i'm not sure i am clear, so here is an exemple :
>
> A | B
> 1 | 5
> 2 | 2
> 3 | 3
> 4 | 2
> 5 | 2
>
> in this situation, the query should return (2, 4, 5)
> as it is very easy to ordre a table, i tought this query would be easy
> too, but it is more difficult than it looks like.
>
> thanks for help
>
>
> Edouard Boucher
>
> ---------------------------(end of broadcast)---------------------------
> TIP 6: Have you searched our list archives?
>
> http://archives.postgresql.org
--
Rod Taylor <rbt@rbt.ca>

PGP Key: http://www.rbt.ca/rbtpub.asc