You're welcome.

>Hi Sergey,
>
>Yes, that is the one! Thanks.
>
>>I see. Try

Select Date, Code, Sum(Amount) as Total,
>>      (SELECT Sum(ord2.Amount) From Orders ord2
>>        Where fk_Customer = 1
>>          And Date Between '20020101' and '20021231'
>>	  And ord2.date() <= orders.date()
>>          And ord2.code = orders.code) AS RunTotal
>>  From Orders
>>  Where fk_Customer = 1 And Date Between '20020101' and '20021231'
>>  Group by Code, Date
>>  Order by Code, Date

I tested above query and it produces result you want.