Re: SQL Query

On Wed, Dec 05, 2007 at 10:24:04AM +0000, Ashish Karalkar wrote:
> Hello List member,
>
> Iha a table containing two columns x and y . for single value of x there are multiple values in y e.g
>
> X Y
> ------------
> 1 ABC
> 2 PQR
> 3 XYZ
> 4 LMN
> 1 LMN
> 2 XYZ
>
> I want a query that will give me following output
>
> 1 ABC:LMN
> 2 PQR:XYZ
> 3 XYZ
> 4 LMN
>
> Any help will be really helpful

Use the array_accum aggregate from the docs as follows:

SELECT x, array_to_string(array_accum(y),':')
FROM your_table
GROUP BY x;

Cheers,
David.
--
David Fetter <david(at)fetter(dot)org> http://fetter.org/
Phone: +1 415 235 3778 AIM: dfetter666 Yahoo!: dfetter
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