How to get g/l cumulative banance(LC) query ?

Hi Experts,

I want the query for general Ledger

Same as Reports - > Financial - > Accounting - > General Ledger

I want the query to display the as above picture. but have a problem with Closing Blance (Comulative Balance(LC) = Opening Balance + Debit - Credit)

if have posting date (RefDate) more than 1 record as same refdate it not summary at closing balance(Comulative Balance (LC)) as same above picture.

Any help would be greatly appreciated.

Thanks

Suphajak