Thread: maximum of sums

Howdy all!

Let's say we have a product orders table like this:

SQL> select * from orders;
ORDER_NO   PROD_NO  QUANTITY
--------- --------- ---------       1         2         3       2         2         3       3         3         3
4        1         4       5         3         8       6         2         7       7         1         6       8
1         3       9         3         3      10         2         4
 

10 rows selected.

SQL>

I want to select the prod_no and sum (quantity) for the product with the max sum
(quantity).

I have this so far:
SQL> select 2     max (sumamt) as maximum 3  from 4     (select 5        sum (orders.quantity) as sumamt 6      from 7
     orders 8      group by 9        orders.prod_no);
 
 MAXIMUM
---------      17

SQL>

But how can I get the matching prod_id?

Any help would be much appreciated!

Rob

Rob,

How about 

select prod_no, sum( quantity) from orders group by prod_no order by 2
desc limit 1;

JLL


Rob wrote:
> 
> Howdy all!
> 
> Let's say we have a product orders table like this:
> 
> SQL> select * from orders;
> 
>  ORDER_NO   PROD_NO  QUANTITY
> --------- --------- ---------
>         1         2         3
>         2         2         3
>         3         3         3
>         4         1         4
>         5         3         8
>         6         2         7
>         7         1         6
>         8         1         3
>         9         3         3
>        10         2         4
> 
> 10 rows selected.
> 
> SQL>
> 
> I want to select the prod_no and sum (quantity) for the product with the max sum
> (quantity).
> 
> I have this so far:
> SQL> select
>   2     max (sumamt) as maximum
>   3  from
>   4     (select
>   5        sum (orders.quantity) as sumamt
>   6      from
>   7        orders
>   8      group by
>   9        orders.prod_no);
> 
>   MAXIMUM
> ---------
>        17
> 
> SQL>
> 
> But how can I get the matching prod_id?
> 
> Any help would be much appreciated!
> 
> Rob
> 
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