SQL Server 2008 R2- Query to get total sales and qty sold by month - sql

Question

I have 2 tables STOCK and ITEMS,
I am trying to get a report showing how total items purchased (ITEMS table- items.quanto), total sales for items(ITEMS table- I assume (items.quanto*items.it_unlist) with description(STOCK table- stock.desc1) by month (ITEMS table-items.odr_date) with classification (which is a field in the STOCK table- stock.assoc).
The owner wants this info for each month for 2011, 2012, and YTD 2013
so total qty sold for item with total sales of that item by month 2011, 2012, 2013 YTD
This is my query
select items.item, items.quanto, SUM(items.QUANTO*items.it_unlist) as [total cost], stock.desc1, items.it_sdate from items
inner join
stock
on
stock.number = items.item
where IT_SDATE between '2011-01-01 00:00:00.0' and '2011-12-31 00:00:00.0'
group by items.item, items.quanto, stock.desc1, items.it_sdate
order by IT_SDATE
I was hoping to get each item totaled sales and qty by month but this is what I figured out on my own…lol
any help is appreciated.

Answer 1

select
item,
right(convert(varchar(8), it_sdate, 3), 5) theMonth,
sum(quanto) totalQuantity,
sum(quanto * it_unlist) totalSales,
max(stock.desc1) descr,
max(stock.assoc) assoc
from
items inner join stock on
items.item = stock.number
where
it_sdate > '2011-01-01'
group by
item,
right(convert(varchar(8), it_sdate, 3), 5)
order by
item,
theMonth
http://sqlfiddle.com/#!3/246d3/18/0

Answer 2

if the item column of the items table is primary key, then you can’t display the each and every item number when you are trying to display the total sales and qty.
And also, the IT_DATE column consists of only one date per month in the table, then only the below query is possible, if not we need to write other query.
if not, you can select.
select i.quanto, sum(QUANTO * it_unlist) as [total list],
s.desc1, i.it_sdate from items i inner join stock s on (s.number = i.item)
where IT_SDATE > 2011-01-01
group by i.it_sdate order by IT_SDATE;