Generating Aging Report - sql

Question

I need to generate an aging report using the below sample data from tblAccount.
+---------+----------+---------------+-------------------+---------------------+-------------+-----------+---------+
| Loan ID | Account | Name | Amortization Date | Amortized Principal | Paid Amount | Date Paid | Balance |
+---------+----------+---------------+-------------------+---------------------+-------------+-----------+---------+
| 2 | A0007787 | JIMMY NEUTRON | 3/9/2020 | 3823.53 | 3823.53 | 3/9/2020 | 0 |
| 2 | A0007787 | JIMMY NEUTRON | 4/9/2020 | 3823.53 | 500 | 3/9/2020 | 3323.53 |
| 2 | A0007787 | JIMMY NEUTRON | 5/9/2020 | 3823.53 | 0 | NULL | 3823.53 |
+---------+----------+---------------+-------------------+---------------------+-------------+-----------+---------+
Zero (0) paid amount and NULL Date Paid means that the amortized principal is not yet paid. Below is my desired output for specific Aging dates.
Aging A - Aging on March 12 Payment has been made on March 12 for March 9 schedule
+---------+----------+---------------+------------+------------+---------+---------+-------+-------+-----
+---------+----------+---------------+------------+------------+---------+---------+-------+-------+-------+---------------+
| Loan ID | Account | Name | Due | Payment | Balance | Current | 30 | 60 | 90 | 120 and Above |
+---------+----------+---------------+------------+------------+---------+---------+-------+-------+-------+---------------+
| 2 | A0007787 | JIMMY NEUTRON | 3,823.53 | 3,823.53 | 0 | - | - | - | - | - |
+---------+----------+---------------+------------+------------+---------+---------+-------+-------+-------+---------------+
Aging B - May 10 500.00 payment has been made on April 9 for April 9 schedule
+---------+----------+---------------+------------+----------+------------+------------+-------+-------+-------+-----------------+
| Loan ID | Account | Name | Due | Payment | Balance | Current | 30 | 60 | 90 | 120 and Above |
+---------+----------+---------------+------------+----------+------------+------------+-------+-------+-------+-----------------+
| 2 | A0007787 | JIMMY NEUTRON | 3,823.53 | 500.00 | 3,323.53 | 3,323.53 | - | - | - | - |
+---------+----------+---------------+------------+----------+------------+------------+-------+-------+-------+-----------------+
Aging C - June 10 There is remaining balance for April 9 schedule and no payment made for May 9
schdeule
+---------+----------+---------------+------------+---------+------------+-----------+------------+------------+-------+-----------------+
| Loan ID | Account | Name | Due | Payment | Balance | Current | 30 | 60 | 90 | 120 and Above |
+---------+----------+---------------+------------+---------+------------+-----------+------------+------------+-------+-----------------+
| 2 | A0007787 | JIMMY NEUTRON | 7,147.06 | 500 | 7,147.06 | - | 3,823.53 | 3,323.53 | - | - |
+---------+----------+---------------+------------+---------+------------+-----------+------------+------------+-------+-----------------+
I have looked and tried suggested solutions here, made tweeks, but it seems that it does not fit to what I wanted to produce.
Currently, I have this kind of Stored Procedure:
INSERT INTO #Aging (
Loan, ID, Account, Name, AmortizationSchedule, AmortizedPrincipal, PaidAmount, DatePaid, Balance)
SELECT Loan, ID, Account, Name, AmortizationSchedule, AmortizedPrincipal, PaidAmount, DatePaid, Balance
FROM tblAccount
Select DISTINCT Loan, ID, Account, Name, AmortizationSchedule, AmortizedPrincipal, PaidAmount, DatePaid, Balance
(case when DATEDIFF(day,convert(date,AmortizationSchedule),convert(date,#DateAsOf )) < 1 then balance else 0 end) as [Current],
(case when DATEDIFF(day,convert(date,AmortizationSchedule),convert(date,#DateAsOf )) between 1 and 30 then balance else 0 end) as [DueTo30],
(case when DATEDIFF(day,convert(date,AmortizationSchedule),convert(date,#DateAsOf )) between 31 and 60 then balance else 0 end) as [DueTo60],
(case when DATEDIFF(day,convert(date,AmortizationSchedule),convert(date,#DateAsOf )) between 61 and 90 then balance else 0 end) as [DueTo90],
(case when DATEDIFF(day,convert(date,AmortizationSchedule),convert(date,#DateAsOf )) between 91 and 120 then balance else 0 end) as [DueTo120],
(case when DATEDIFF(day,convert(date,AmortizationSchedule),convert(date,#DateAsOf )) > 120 then balance else 0 end) as [Over120]
from #Aging where balance<>0.00
order by Account
But it gives the following result,
+---------+----------+---------------+-------------+------------+-------------+-----------+-------+-------------+----+-----------------+
| Loan ID | Account | Name | Due | Payment | Balance | Current | 30 | 60 | 90 | 120 and Above |
+---------+----------+---------------+-------------+------------+-------------+-----------+-------+-------------+----+-----------------+
| 2 | A0007787 | JIMMY NEUTRON | 90,000.00 | 8,647.06 | 14,294.12 | - | - | 14,294.12 | 0 | 0 |
+---------+----------+---------------+-------------+------------+-------------+-----------+-------+-------------+----+-----------------+
It seems that it duplicate the value of due, payment and balance on the number of amortization schedule which is three (March, April, May)
Hoping for a positive response. TIA!

Answer 1

Your query gives the correct results once group by and sum used. Am I missing something?
Select DISTINCT [Loan ID], Account, [Name]
,sum(AmortizedPrincipal) Due, sum(PaidAmount) Payment, sum(Balance) Balance,
sum(case when DATEDIFF(day,convert(date,AmortizationSchedule),convert(date,#DateAsOf)) < 1 then balance else 0 end) as [Current],
sum(case when DATEDIFF(day,convert(date,AmortizationSchedule),convert(date,#DateAsOf)) between 1 and 30 then balance else 0 end) as [DueTo30],
sum(case when DATEDIFF(day,convert(date,AmortizationSchedule),convert(date,#DateAsOf)) between 31 and 60 then balance else 0 end) as [DueTo60],
sum(case when DATEDIFF(day,convert(date,AmortizationSchedule),convert(date,#DateAsOf)) between 61 and 90 then balance else 0 end) as [DueTo90],
sum(case when DATEDIFF(day,convert(date,AmortizationSchedule),convert(date,#DateAsOf)) between 91 and 120 then balance else 0 end) as [DueTo120],
sum(case when DATEDIFF(day,convert(date,AmortizationSchedule),convert(date,#DateAsOf)) > 120 then balance else 0 end) as [Over120]
from #Aging where balance<>0.00
GROUP BY [Loan ID], Account, [Name]
order by Account
Please check the db<>fiddle here.