Display records according month

Question

hi all.
i want to display records according months.
i created view something like this.
create or replace view month_timer (item1, amount,item_date) as
select item1,sum(amount),item_date
from table
where trunc(item_date) between to_date('01-jan-2010') and trunc(sysdate)
AND item_TYPE!=4
group by item1,item_date
ORDER BY item_dateany suggestions?
sarah

Answer 1

create or replace view month_timer (item1, amount,item_date) as here in this statement you are using item1 and only tree columns.
select pcd_plt_id,pcd_cbr_id ,sum(amount),item_date And here in this statement there are four columns. So which column is for item1
group by item1,item_dateHere you can use only selected columns in group by. But you are using item1 which you used above for view.
And in select there are three columns without aggregate function. And you are using only two here.
If you could post the table data and desired output. Then it will be easier to find better way.
-Ammad