OVER PARTITION BY giving error in SQL Server 2008 -


i have following query:

select      *,      sum(balanceqty) on (partition item_code order [date])      (select          date, item_code,           sum(in_quantity) in_quantity,           sum(issue_quantity) issue_quantity,           (sum(in_quantity) - sum(issue_quantity)) balanceqty                   (select               tbl_add_product.date date,                tbl_add_product.item_code,                tbl_add_product.in_quantity,                0 issue_quantity                           tbl_add_product                         item_code = 'pen'             union            select                tbl_issue_product.date date,                tbl_issue_product.item_code,                0 in_quantity,                issue_quantity                          tbl_issue_product                         item_code = 'pen') x      group          item_code, date) o 

it working fine in sql server 2012 causing error in sql server 2008. please suggest solution it.

if want solution can work on both try :

;with cte      (select date,                 item_code,                 sum(in_quantity)                           in_quantity,                 sum(issue_quantity)                        issue_quantity,                 ( sum(in_quantity) - sum(issue_quantity) ) balanceqty            (select tbl_add_product.date date,                         tbl_add_product.item_code,                         tbl_add_product.in_quantity,                         0                    issue_quantity                    tbl_add_product                   item_code = 'pen'                  union                  select tbl_issue_product.date date,                         tbl_issue_product.item_code,                         0                      in_quantity,                         issue_quantity                    tbl_issue_product                   item_code = 'pen') x          group  item_code,date) select *,(select sum(balanceqty) cte c2 c2.date <=c1.date)   cte c1 

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