Re: Reporting: Oracle-like features?

Very cool. And you know which row has the subtotal since it'll have the
value "Total" in the first column.

I like. :-).

On Tue, Jan 21, 2003 at 08:16:08AM -0800, Josh Berkus wrote:
> David,
>
> > CLEAR COMPUTES
> > CLEAR BREAKS
> > BREAK ON item_name
> > COMPUTE SUM OF sale_count*per_item ON item_name
> > SELECT s.sale_time AS "When sold"
> > , i.item_name AS "What sold"
> > , s.sale_count AS "How many"
> > , s.per_item AS "Each"
> > , s.sale_count*s.per_item AS "$ale (kaching!)"
> > FROM sales s, item i
> > ORDER BY i.item_name, s.sale_time;
>
> Ah. What Oracle is doing here is combining a reporting script with
> SQL. One can, in fact, do the above in pure SQL, it's just awkward:
>
> SELECT to_char(s.sale_time, 'YYYY-DD-MM') AS "When sold"
> , i.item_name AS "What sold"
> , s.sale_count AS "How many"
> , s.per_item AS "Each"
> , s.sale_count*s.per_item AS "$ale (kaching!)"
> FROM sales s, item i
> WHERE sales.item_id = item.item_id
> UNION ALL
> SELECT 'Total'
> , i.item_name
> , sum(s.sale_count)
> , avg(s.per_item)
> , sum(s.sale_count*s.per_item)
> FROM sales s, item i
> WHERE sales.item_id = item.item_id
> ORDER BY item_name, "When sold";
>
> This should work to give you the detail, plus a totals row just below
> the detail (since "Total" will sort after numerical dates).
>
> It's almost certainly what Oracle is doing on the back-end when it
> receives your "break on" command.
>
> -Josh Berkus
>
>
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