Re: SQL for a statistic result set

[Charles Wilt <charles.wilt@xxxxxxxxx>]

Ah, SQL with my coffee...

WITH ProductCounts as (SELECT client,
                             count(distinct product) as productCount
                      FROM qtemp/david
                      GROUP BY client
                      )
SELECT productCount, count(*) as clientCount
FROM ProductCounts
group by productCount


HTH,
Charles

On Thu, Sep 2, 2010 at 8:32 AM, David FOXWELL <David.FOXWELL@xxxxxxxxx> wrote:
> Hi all,
>
> I have a table like so :
>
> Client Product
> C1              P1
> C1              P2
> C2              P1
> C3              P4
> C4              P1
> C4              P2
> C4              P3
>
> With the max, min and avg functions I can see that on average a client has 2 products, that no client has more than 7 products and none with less than 1.
>
> But how can I output :
>
> Number of products      Number of clients
> 1                               ?
> 2
> 3
> 4
> 5
> 6
> 7
>
>
> Thanks.
>
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