Help with Sql for Annual Report per month

Question

Hi, I have been given the task to create an annual report by month that would show company's profits per month and totals in the last column to show which branch had the hightest income.
Branch||January||February||March||April||May||June....||Total||     
ABC ||$0.00 ||$0.00 ||$0.00||$0.00||$0.00||$0.00||Total Amt||
DEF ||$18.01 ||$3.88 ||$18.01||$4.12||$18.01||$3.97||Total Amt||
Can anyone please help me in giving an idea of how to write sql for this report..? I am building sub-queries for everymonth by giving the dates for Jan/Feb/March..but I think this is not the right way to do this....
SELECT
sum(a.commission) December,
sum(b.commission) November
FROM
Select
c.account_id,
c.officer,
c.account_product_class_id,
sum(c.dp_monthly_premium) Commission
From
contract c
Where
c.account_id=109 and
c.status='APPROVED' and
c.protection_effective between '01-DEC-2009' and '31-DEC-2009'
Group by
c.account_id,
c.officer,
c.account_product_class_id
) a,
Select
c.account_id,
c.officer,
c.account_product_class_id,
sum(c.dp_monthly_premium) Commission
From
contract c
Where
c.account_id=109 and
c.status='APPROVED' and
c.protection_effective between '01-NOV-2009' and '30-NOV-2009'
Group by
c.account_id,
c.officer,
c.account_product_class_id
) b
I always have hight hope from this forum. So please help. Thanks in advance.
Edited by: Aditi_Seth on Jan 26, 2010 2:29 PM

Answer 1

You may try a group report on one simple query like:
Select
c.account_id, c.officer, to_char(c.protection_effective, 'MM') month
sum(c.dp_monthly_premium) Commission
From
contract c
Where
c.status='APPROVED' and .....
Group by
c.account_id
c.officer,
to_char(c.protection_effective, 'MM')
break/gropu on account_id, c.officer, to_char(c.protection_effective, 'MM') and total will be automatically calculated by Reports.