declare @tH table (idx int, collector varchar(10), receiptNo varchar(16), 
sysNo varchar(16), payerID int);
insert into @tH values(1, '1925', '018567', '00001', 10);
insert into @tH values(2, '1925', '018568', '00002', 9);
insert into @tH values(3, '1925', '018569', '00003', 13);
/*
idx is a primary key
receiptNo is a unique key
sysNo is a unique key
relationship @tH to @tD is 1 to many
*/

declare @tD table (tH_idx int, paymentType varchar(10), amount decimal(10,2));
insert into @tD values(1, '80090', 320.10);
insert into @tD values(1, '80091', 20.50);
insert into @tD values(1, '80097', 400.10);
insert into @tD values(2, '80090', 400);
insert into @tD values(2, '80091', 95.60);
insert into @tD values(3, '80092', 70.40);
insert into @tD values(3, '80094', 300.00);
insert into @tD values(3, '80099', 400.10);
/*
@tD(tH_idx) is a foreign key to @tH(idx)
*/

idx    | collector   | receiptNo   | sysNo   | payerID   | totalAmount
-----------------------------------------------------------------------------
1        1925          018567        00001     10          740.70
2        1925          018568        00002     9           495.60
3        1925          018569        00003     13          770.50

select t1.idx, t1.collector, t1.sysNo, t1.receiptNo, t1.payerID, t2.paymentType,
SUM(t2.amount) from @tH t1 inner join @tD t2
on t1.idx=t2.tH_idx
group by t1.idx

SELECT t.*,t1.totalAmount
FROM @tH t
INNER JOIN (SELECT tH_idx,SUM(amount) AS totalAmount
            FROM @tD
            GROUP BY tH_idx
            )t1
ON t1.tH_idx = t.idx