RE: SQL for a statistic result set

-----Message d'origine-----
De : midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] De la part de Charles Wilt
Envoyé : jeudi 2 septembre 2010 14:51
À : Midrange Systems Technical Discussion
Objet : Re: SQL for a statistic result set

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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