# ACCOUNT RECEIVABLE HISTORY DATA

Hi All,

I have a AR data like below :

1. InvNo
2. InvDate
3. InvAmount
4. PayNo
5. PayDate
6. AllocationAmount
7. PaidAmount

Sample Data :

Normal Allocation (no problem):

InvNo  InvDate        InvAmount  PayNo   PayDate          AllocationAmount   PaidAmount
A        01/05/2010   100            A          01/05/2010    0                        0
A        01/05/2010   0               AL01     01/10/2010     100                      0
A        01/05/2010   0               BR01     01/10/2010    -100                    100

Late Allocation:

InvNo  InvDate        InvAmount  PayNo   PayDate          AllocationAmount   PaidAmount
A        01/05/2010   100            A          01/05/2010    0                        0
A        01/05/2010   0               BR01     01/10/2010    -100                    100
A        01/05/2010   0               AL01     02/01/2010     100                      0

In plain English said :

We have received money from customer in January, but we don't know which customer.
In February, we know it, then we allocate the invoice.
When allocation (AL01) we also write BR01 Payment Data to the table.
We call it late allocation and we don't want the AR change when we print history of AR.

In report :

In January our AR still 100, but in Feb our AR will became 0, why, because base on Allocation date.

AR Jan = SUM(InvAmount) - SUM(AllocationAmount) - SUM(PaidAmount)

How to query it ?

Thank you.

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Commented:
It's possible to come up with fairly complex SQL that would give you an output like:

Month       Year      AR
January     2011    100
February   2011     0

Or
January-2011   February-2011
100                  0

However, instead of coming up with that, may I suggest you come up with another table to store the AR Summaries for the month?  It will look something like the first table above.

Why do I suggest this?  Because to come up with AR for a month, you will need to compute using all the transactions from the very first transaction (which could be years old) up to the end of that month.  That will be very slow once you have months (years?) of transactions.  If you come up with another table for AR Summaries, then you will just take the AR figure for the previous month, compute the transactions for the current month, then add the two values.

Let's say the first-ever recorded transaction was January 2010.  To populate the new AR_SUMMARIES table:
``````insert into AR_SUMMARIES
select 'January', '2010',
SUM(InvAmount) - SUM(AllocationAmount) - SUM(PaidAmount)
from AR_DATA where PayDate < to_date('01-Feb-2010','dd-Mon-YYYY')
``````
(I'm not too familiar with what's the equivalent of to_date in SQL Server so please just adjust the above)

Then for the next months, you do:
``````insert into AR_SUMMARIES
select 'January', '2010',
(SUM(InvAmount) - SUM(AllocationAmount) - SUM(PaidAmount) +
(select AR from AR_SUMMARIES where year='2010' and month='January')
)
from AR_DATA where PayDate between to_date('01-Feb-2010','dd-Mon-YYYY') and to_date('01-Mar-2010','dd-Mon-YYYY')
``````

Of course,  if you're talking many years of data you should do this in an script that automatically adjusts the months and dates.

After the initial population maybe you can plan on having a trigger that will update AR_SUMMARIES for every insert/update/delete in AR_DATA.

Then just select from the AR_SUMMARIES table for your historical AR.

Hope this helps.
Author Commented:
Hi johanntagle,

Let's say we keep the table that way, how to generate the right output ?

InvNo  InvDate        InvAmount  PayNo   PayDate          AllocationAmount   PaidAmount
A        01/05/2010   100            A          01/05/2010    0                        0
A        01/05/2010   0               BR01     01/10/2010    -100                    100
A        01/05/2010   0               AL01     02/01/2010     100                      0

1. At Date 01/06/2010
2. At Date 01/01/2010
3. At Date 02/01/2010

Thank you.
Commented:
Just for the specific output you specified, the simplest way would be:

``````select SUM(InvAmount) - SUM(AllocationAmount) - SUM(PaidAmount)
from AR_DATA
where paydate <= to_date('06-Jan-2010','dd-Mon-YYYY')
UNION
select SUM(InvAmount) - SUM(AllocationAmount) - SUM(PaidAmount)
from AR_DATA
where paydate <= to_date('01-Jan-2010','dd-Mon-YYYY')
UNION
select SUM(InvAmount) - SUM(AllocationAmount) - SUM(PaidAmount)
from AR_DATA
where paydate <= to_date('01-Feb-2010','dd-Mon-YYYY')
``````

Again, I'm not sure re equivalent of to_date in MS-SQL (I mainly use Oracle) so please check.
Author Commented:
Give me sometimes, I think there sometimes, since my report has some problem using the same approach.

Thank you.
Author Commented:

InvNo    InvDate             InvAmount     PayNo                                       PayDate          AllocationAmount         PaidAmount
A          2011/01/13       31280000.00      11BD000122                                  2011/01/13                     0.00                       0.00
A          2011/01/13                   0.00      BM/1149-RP/BAD-JKT/1101/030         2011/01/28        -31280000.00       31280000.00
A          2011/01/13                   0.00      AP/BAD-JKT/1102/144                 2011/02/17         31280000.00                       0.00

B          2011/02/16       45000000.00      11BD000530                                  2011/02/16                    0.00      0.00
B          2011/02/16                   0.00      AP/BAD-JKT/1103/253                 2011/03/26        45000000.00      0.00

Expected Report format :

1.InvNo
2.InvDate
3.InvAmount
4.BegBalance
5.Sales
6.AllocationAmount
7.PaidAmount

Expected Report :

InvNo    InvDate          InvAmount     BegBalance                Sales               AllocationAmount         PaidAmount

1. Jan 1 2011 - Jan 31 2011

A          2011/01/13       31280000.00            0.00     31280000.00                                 0.00                   0.00

2. Feb 1 2011 - Feb 28 2011

A          2011/01/13       31280000.00  31280000.00               0.00                                  0.00       31280000.00
B          2011/02/16       45000000.00              0.00   45000000.00                                  0.00                   0.00

3. Mar 1 2011 - Mar 31 2011

B          2011/02/16       45000000.00  45000000.00               0.00                      45000000.00                   0.00

4. Apr 1 2011 - Apr 30 2011

B          2011/02/16       45000000.00  45000000.00               0.00                      45000000.00                   0.00

Thank you.

Commented:
Okay so you want to show:

1.  New invoices for the month that are left unpaid by the end of the month (A in the January Report)
2.  Invoices that were outstanding the previous month then paid in the current month (A in the February report)
3.  Invoices created the previous month or older and that are still left outstanding

Is that correct?

Assuming:
- BegBalance is the beginning balance at the start of the month covered by the report
- Sales only has a non-zero value on the month the invoice was created
- Invoices are always paid in full (I put in what I think can handle partial payment, but I'm not sure their correct and complete)

``````/*This addresses criteria 1 */
select InvNo, InvDate, sum(InvAmount) as InvAmount, 0 as BegBalance, sum(InvAmount) as Sales, sum(AllocationAmount), sum(PaidAmount)
from AR_DATA INNER JOIN
(select InvNo, sum(InvAmount)-sum(AllocationAmount)-sum(PaidAmount)
from AR_DATA
where PayDate between to_date(v_start_date,'dd-Mon-YYYY') and to_date(v_end_date,'dd-Mon-YYYY')
group by InvNo
having sum(InvAmount)-sum(AllocationAmount)-sum(PaidAmount)>0) NEW_AR
ON AR_DATA.InvNo = NEW_AR.InvNo
where AR_DATA.InvAmount > 0
group by InvNo, InvDate, BegBalance
UNION
SELECT FULLY_PAID.InvNo, FULLY_PAID.InvDate, PREV_AR.BegBalance, 0 as Sales, 0 as AllocationAmount, FULLY_PAID.PaidAmount
FROM
( select InvNo, sum(InvAmount)-sum(AllocationAmount)-sum(PaidAmount) as BegBalance
from AR_DATA
where PayDate < to_date(v_start_date,'dd-Mon-YYYY') and to_date(v_end_date,'dd-Mon-YYYY')
group by InvNo
having sum(InvAmount)-sum(AllocationAmount)-sum(PaidAmount)>0
) PREV_AR
INNER JOIN
( select InvNo, sum(InvAmount)-sum(AllocationAmount)-sum(PaidAmount), sum(PaidAmount) as PaidAmount
from AR_DATA
where PayDate < to_date(v_end_date,'dd-Mon-YYYY')
group by InvNo
having sum(InvAmount)-sum(AllocationAmount)-sum(PaidAmount)=0
) FULLY_PAID
ON PREV_AR.InvNo=FULLY_PAID.InvNo
UNION
select InvNo, InvDate, sum(InvAmount), sum(InvAmount)-sum(AllocationAmount)-sum(PaidAmount) as BegBalance, 0 as Sales, sum(AllocationAmount), sum(PaidAmount)
from AR_DATA
where PayDate < to_date(v_start_date,'dd-Mon-YYYY')
and InvNo not in (select distinct InvNo for AR_DATA where PayDate between to_date(v_start_date,'dd-Mon-YYYY') and to_date(v_end_date,'dd-Mon-YYYY') )
group by InvNo, InvDate, Sales
having sum(InvAmount)-sum(AllocationAmount)-sum(PaidAmount)>0
``````

Replace v_start_date and v_end_date accordingly.  Also note warning re to_date in my previous post.

Warning - untested!  But it should point you to the right direction.

Author Commented:
Let my try first.

Thank you.
Author Commented:
So many query has no result column name such as :

select InvNo, sum(InvAmount)-sum(AllocationAmount)-sum(PaidAmount), sum(PaidAmount) as PaidAmount

Like this :
sum(InvAmount)-sum(AllocationAmount)-sum(PaidAmount),

Thank you.
Author Commented:
Begining Balance =
sum(InvAmount)-sum(AllocationAmount)-sum(PaidAmount)

select InvNo, sum(InvAmount)-sum(AllocationAmount)-sum(PaidAmount) as BegBalance
from AR_DATA
where PayDate < to_date(v_start_date,'dd-Mon-YYYY') and to_date(v_end_date,'dd-Mon-YYYY')
group by InvNo
having sum(InvAmount)-sum(AllocationAmount)-sum(PaidAmount)>0

I think this is not correct, please see invoice B.
At the beginning of March 1, 2001 will get wrong value.

The where clause also wrong.

Am I right ?

Thank you.
Commented:
I think I got the first two criteria (I did this in MySQL but the query syntax (again except for the date handling) is fairly standard.  )

``````mysql> select * from AR_DATA;
+-------+------------+-----------+-----------------------------+------------+------------------+------------+
| InvNo | InvDate    | InvAmount | PayNo                       | PayDate    | AllocationAmount | PaidAmount |
+-------+------------+-----------+-----------------------------+------------+------------------+------------+
| A     | 2011-01-13 | 3.128e+07 | 11BD000122                  | 2011-01-13 |                0 |          0 |
| A     | 2011-01-13 |         0 | BM/1149-RP/BAD-JKT/1101/030 | 2011-01-28 |       -3.128e+07 |  3.128e+07 |
| A     | 2011-01-13 |         0 | AP/BAD-JKT/1102/144         | 2011-02-17 |        3.128e+07 |          0 |
| B     | 2011-02-16 |   4.5e+07 | 11BD000530                  | 2011-02-16 |                0 |          0 |
| B     | 2011-02-16 |         0 | AP/BAD-JKT/1103/253         | 2011-03-26 |          4.5e+07 |          0 |
+-------+------------+-----------+-----------------------------+------------+------------------+------------+
5 rows in set (0.00 sec)

mysql> select AR_DATA.InvNo as InvNo, AR_DATA.InvDate as InvDate, sum(InvAmount) as InvAmount, 0 as BegBalance, sum(InvAmount) as Sales, sum(AllocationAmount) as AllocationAmount, sum(PaidAmount) as PaidAmount
-> from AR_DATA INNER JOIN
->   (select InvNo, sum(InvAmount)-sum(AllocationAmount)-sum(PaidAmount)
->   from AR_DATA
->   where PayDate between '2011-01-01' and '2011-02-01'
->   group by InvNo
->   having sum(InvAmount)-sum(AllocationAmount)-sum(PaidAmount)>0) NEW_AR
-> ON AR_DATA.InvNo = NEW_AR.InvNo
-> where AR_DATA.InvAmount > 0
-> group by InvNo, InvDate, BegBalance
-> UNION
-> /*This addresses criteria 2 */
-> SELECT FULLY_PAID.InvNo as InvNo, FULLY_PAID.InvDate as InvDate, PREV_AR.InvAmount as InvDate, PREV_AR.BegBalance as BegBalance, 0 as Sales, 0 as AllocationAmount, FULLY_PAID.PaidAmount as PaidAmount
-> FROM
->   ( select InvNo, sum(InvAmount) as InvAmount, sum(InvAmount)-sum(AllocationAmount)-sum(PaidAmount) as BegBalance
->      from AR_DATA
->      where PayDate < '2011-01-01' and '2011-02-01'
->      group by InvNo
->      having sum(InvAmount)-sum(AllocationAmount)-sum(PaidAmount)>0
->   ) PREV_AR
->  INNER JOIN
->   ( select InvNo, InvDate, sum(InvAmount)-sum(AllocationAmount)-sum(PaidAmount), sum(PaidAmount) as PaidAmount
->      from AR_DATA
->      where PayDate < '2011-02-01'
->      group by InvNo, InvDate
->      having (sum(InvAmount)-sum(AllocationAmount)-sum(PaidAmount)=0 and sum(PaidAmount)>0)
->   ) FULLY_PAID
->  ON PREV_AR.InvNo=FULLY_PAID.InvNo;
+-------+------------+-----------+------------+----------+------------------+------------+
| InvNo | InvDate    | InvAmount | BegBalance | Sales    | AllocationAmount | PaidAmount |
+-------+------------+-----------+------------+----------+------------------+------------+
| A     | 2011-01-13 |  31280000 |          0 | 31280000 |                0 |          0 |
+-------+------------+-----------+------------+----------+------------------+------------+
1 row in set, 1 warning (0.00 sec)

mysql> select AR_DATA.InvNo as InvNo, AR_DATA.InvDate as InvDate, sum(InvAmount) as InvAmount, 0 as BegBalance, sum(InvAmount) as Sales, sum(AllocationAmount) as AllocationAmount, sum(PaidAmount) as PaidAmount from AR_DATA INNER JOIN   (select InvNo, sum(InvAmount)-sum(AllocationAmount)-sum(PaidAmount)   from AR_DATA   where PayDate between '2011-02-01' and '2011-03-01'   group by InvNo   having sum(InvAmount)-sum(AllocationAmount)-sum(PaidAmount)>0) NEW_AR ON AR_DATA.InvNo = NEW_AR.InvNo where AR_DATA.InvAmount > 0 group by InvNo, InvDate, BegBalance UNION  SELECT FULLY_PAID.InvNo as InvNo, FULLY_PAID.InvDate as InvDate, PREV_AR.InvAmount as InvDate, PREV_AR.BegBalance as BegBalance, 0 as Sales, 0 as AllocationAmount, FULLY_PAID.PaidAmount as PaidAmount FROM   ( select InvNo, sum(InvAmount) as InvAmount, sum(InvAmount)-sum(AllocationAmount)-sum(PaidAmount) as BegBalance      from AR_DATA      where PayDate < '2011-02-01' and '2011-03-01'      group by InvNo      having sum(InvAmount)-sum(AllocationAmount)-sum(PaidAmount)>0   ) PREV_AR  INNER JOIN   ( select InvNo, InvDate, sum(InvAmount)-sum(AllocationAmount)-sum(PaidAmount), sum(PaidAmount) as PaidAmount      from AR_DATA      where PayDate < '2011-03-01'      group by InvNo, InvDate      having (sum(InvAmount)-sum(AllocationAmount)-sum(PaidAmount)=0 and sum(PaidAmount)>0)   ) FULLY_PAID  ON PREV_AR.InvNo=FULLY_PAID.InvNo;
+-------+------------+-----------+------------+----------+------------------+------------+
| InvNo | InvDate    | InvAmount | BegBalance | Sales    | AllocationAmount | PaidAmount |
+-------+------------+-----------+------------+----------+------------------+------------+
| B     | 2011-02-16 |  45000000 |          0 | 45000000 |                0 |          0 |
| A     | 2011-01-13 |  31280000 |   31280000 |        0 |                0 |   31280000 |
+-------+------------+-----------+------------+----------+------------------+------------+
2 rows in set, 1 warning (0.00 sec)

mysql> select AR_DATA.InvNo as InvNo, AR_DATA.InvDate as InvDate, sum(InvAmount) as InvAmount, 0 as BegBalance, sum(InvAmount) as Sales, sum(AllocationAmount) as AllocationAmount, sum(PaidAmount) as PaidAmount from AR_DATA INNER JOIN   (select InvNo, sum(InvAmount)-sum(AllocationAmount)-sum(PaidAmount)   from AR_DATA   where PayDate between '2011-03-01' and '2011-04-01'   group by InvNo   having sum(InvAmount)-sum(AllocationAmount)-sum(PaidAmount)>0) NEW_AR ON AR_DATA.InvNo = NEW_AR.InvNo where AR_DATA.InvAmount > 0 group by InvNo, InvDate, BegBalance UNION  SELECT FULLY_PAID.InvNo as InvNo, FULLY_PAID.InvDate as InvDate, PREV_AR.InvAmount as InvDate, PREV_AR.BegBalance as BegBalance, 0 as Sales, 0 as AllocationAmount, FULLY_PAID.PaidAmount as PaidAmount FROM   ( select InvNo, sum(InvAmount) as InvAmount, sum(InvAmount)-sum(AllocationAmount)-sum(PaidAmount) as BegBalance      from AR_DATA      where PayDate < '2011-03-01' and '2011-04-01'      group by InvNo      having sum(InvAmount)-sum(AllocationAmount)-sum(PaidAmount)>0   ) PREV_AR  INNER JOIN   ( select InvNo, InvDate, sum(InvAmount)-sum(AllocationAmount)-sum(PaidAmount), sum(PaidAmount) as PaidAmount      from AR_DATA      where PayDate < '2011-04-01'      group by InvNo, InvDate      having (sum(InvAmount)-sum(AllocationAmount)-sum(PaidAmount)=0 and sum(PaidAmount)>0)   ) FULLY_PAID  ON PREV_AR.InvNo=FULLY_PAID.InvNo;
Empty set, 1 warning (0.00 sec)
``````

(The second and third queries are the same as the first, with only the dates changed.)

The third criteria is proving a bit tricky.  I'll see if I have time for it later.  But we're getting there.
Author Commented:
As I mentioned before, the BegBalance on March 1, 2011 will get wrong value for invoice B.

What do you think ?

Thank you.
Commented:
I'm basing it on the expected output you have given:

2. Feb 1 2011 - Feb 28 2011

A          2011/01/13       31280000.00  31280000.00               0.00                                  0.00       31280000.00
B          2011/02/16       45000000.00              0.00   45000000.00                                  0.00                   0.00

``````+-------+------------+-----------+------------+----------+------------------+------------+
| InvNo | InvDate    | InvAmount | BegBalance | Sales    | AllocationAmount | PaidAmount |
+-------+------------+-----------+------------+----------+------------------+------------+
| B     | 2011-02-16 |  45000000 |          0 | 45000000 |                0 |          0 |
| A     | 2011-01-13 |  31280000 |   31280000 |        0 |                0 |   31280000 |
+-------+------------+-----------+------------+----------+------------------+------------+
``````

If this is wrong, what is your expected output for BegBalance for B?
Author Commented:
Your result is for 2. Feb 1 2011 - Feb 28 2011

Look at below.

3. Mar 1 2011 - Mar 31 2011

B          2011/02/16       45000000.00  45000000.00               0.00                      45000000.00                   0.00

4. Apr 1 2011 - Apr 30 2011

B          2011/02/16       45000000.00  45000000.00               0.00                      45000000.00                   0.00

It the cheque is not cleared (AllocationAmount), will be carried forward the next period and so on.

Thank you.
Commented:
Yes that is the 3rd criterion I said I haven't figured out yet.
Author Commented:
Ok.

Thank you.
Commented:
Here you go:
``````select AR_DATA.InvNo as InvNo, AR_DATA.InvDate as InvDate, sum(InvAmount) as InvAmount, 0 as BegBalance, sum(InvAmount) as Sales, sum(AllocationAmount) as AllocationAmount, sum(PaidAmount) as PaidAmount
from AR_DATA INNER JOIN
(select InvNo, sum(InvAmount)-sum(AllocationAmount)-sum(PaidAmount)
from AR_DATA
where PayDate between '2011-04-01' and '2011-05-01'
group by InvNo
having sum(InvAmount)-sum(AllocationAmount)-sum(PaidAmount)>0) NEW_AR
ON AR_DATA.InvNo = NEW_AR.InvNo
where AR_DATA.InvAmount > 0
group by InvNo, InvDate, BegBalance
UNION
SELECT FULLY_PAID.InvNo as InvNo, FULLY_PAID.InvDate as InvDate, PREV_AR.InvAmount as InvDate, PREV_AR.BegBalance as BegBalance, 0 as Sales, 0 as AllocationAmount, FULLY_PAID.PaidAmount as PaidAmount
FROM
( select InvNo, sum(InvAmount) as InvAmount, sum(InvAmount)-sum(AllocationAmount)-sum(PaidAmount) as BegBalance
from AR_DATA
where PayDate < '2011-04-01'
group by InvNo
having sum(InvAmount)-sum(AllocationAmount)-sum(PaidAmount)>0
) PREV_AR
INNER JOIN
( select InvNo, InvDate, sum(InvAmount)-sum(AllocationAmount)-sum(PaidAmount), sum(PaidAmount) as PaidAmount
from AR_DATA
where PayDate < '2011-05-01'
group by InvNo, InvDate
having (sum(InvAmount)-sum(AllocationAmount)-sum(PaidAmount)=0 and sum(PaidAmount)>0)
) FULLY_PAID
ON PREV_AR.InvNo=FULLY_PAID.InvNo
UNION
select previous.InvNo as InvNo, previous.InvDate as InvDate, sum(previous.InvAmount) as InvAmount, sum(previous.InvAmount)-sum(previous.PaidAmount) as BegBalance, 0 as Sales, current.AllocationAmount as AllocationAmount, sum(previous.PaidAmount) as PaidAmount
from AR_DATA previous
join (select InvNo, sum(AllocationAmount) AllocationAmount, sum(InvAmount), sum(PaidAmount)
from AR_DATA
where PayDate < '2011-05-01'
group by InvNo
having sum(InvAmount)-sum(PaidAmount)>0
) current
on previous.InvNo=current.InvNo
where previous.PayDate < '2011-04-01'
and previous.InvNo not in (select a.InvNo from
(select InvNo, sum(InvAmount)-sum(PaidAmount) BegBalance, sum(PaidAmount) PaidAmount
from AR_DATA
where PayDate < '2011-05-01'
group by InvNo
having sum(InvAmount)-sum(PaidAmount)=0) a
)
group by previous.InvNo, previous.InvDate
having sum(previous.InvAmount)-sum(previous.PaidAmount)>0
``````

See it in action in the attached spool file.

Whew!  That was tough =)
ar.txt

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Author Commented:
Why still use below code ? The result will be 0 ?

select InvNo, sum(InvAmount) as InvAmount, sum(InvAmount)-sum(AllocationAmount)-sum(PaidAmount) as BegBalance
from AR_DATA
where PayDate < '2011-04-01'
group by InvNo
having sum(InvAmount)-sum(AllocationAmount)-sum(PaidAmount)>0

B          2011/02/16       45000000.00      11BD000530                                  2011/02/16                    0.00      0.00
B          2011/02/16                   0.00      AP/BAD-JKT/1103/253                 2011/03/26        45000000.00      0.00

sum(InvAmount)-sum(AllocationAmount)-sum(PaidAmount) as BegBalance
45000000.00 -  45000000.00 - 0 = 0

Thank you.
Commented:
Each subquery separated by a UNION clause actually looks for a match for one of the 3 criteria and that criterion only.

1.  New invoices for the month that are left unpaid by the end of the month (A in the January Report) is handled by:
``````select AR_DATA.InvNo as InvNo, AR_DATA.InvDate as InvDate, sum(InvAmount) as InvAmount, 0 as BegBalance, sum(InvAmount) as Sales, sum(AllocationAmount) as AllocationAmount, sum(PaidAmount) as PaidAmount
from AR_DATA INNER JOIN
(select InvNo, sum(InvAmount)-sum(AllocationAmount)-sum(PaidAmount)
from AR_DATA
where PayDate between '2011-04-01' and '2011-05-01'
group by InvNo
having sum(InvAmount)-sum(AllocationAmount)-sum(PaidAmount)>0) NEW_AR
ON AR_DATA.InvNo = NEW_AR.InvNo
where AR_DATA.InvAmount > 0
group by InvNo, InvDate, BegBalance
``````

2.  Invoices that were outstanding the previous month then paid in the current month (A in the February report) is handled by:
``````SELECT FULLY_PAID.InvNo as InvNo, FULLY_PAID.InvDate as InvDate, PREV_AR.InvAmount as InvDate, PREV_AR.BegBalance as BegBalance, 0 as Sales, 0 as AllocationAmount, FULLY_PAID.PaidAmount as PaidAmount
FROM
( select InvNo, sum(InvAmount) as InvAmount, sum(InvAmount)-sum(AllocationAmount)-sum(PaidAmount) as BegBalance
from AR_DATA
where PayDate < '2011-04-01'
group by InvNo
having sum(InvAmount)-sum(AllocationAmount)-sum(PaidAmount)>0
) PREV_AR
INNER JOIN
( select InvNo, InvDate, sum(InvAmount)-sum(AllocationAmount)-sum(PaidAmount), sum(PaidAmount) as PaidAmount
from AR_DATA
where PayDate < '2011-05-01'
group by InvNo, InvDate
having (sum(InvAmount)-sum(AllocationAmount)-sum(PaidAmount)=0 and sum(PaidAmount)>0)
) FULLY_PAID
ON PREV_AR.InvNo=FULLY_PAID.InvNo
``````

3.  Invoices created the previous month or older and that are still left outstanding  is handled by:
``````select previous.InvNo as InvNo, previous.InvDate as InvDate, sum(previous.InvAmount) as InvAmount, sum(previous.InvAmount)-sum(previous.PaidAmount) as BegBalance, 0 as Sales, current.AllocationAmount as AllocationAmount, sum(previous.PaidAmount) as PaidAmount
from AR_DATA previous
join (select InvNo, sum(AllocationAmount) AllocationAmount, sum(InvAmount), sum(PaidAmount)
from AR_DATA
where PayDate < '2011-05-01'
group by InvNo
having sum(InvAmount)-sum(PaidAmount)>0
) current
on previous.InvNo=current.InvNo
where previous.PayDate < '2011-04-01'
and previous.InvNo not in (select a.InvNo from
(select InvNo, sum(InvAmount)-sum(PaidAmount) BegBalance, sum(PaidAmount) PaidAmount
from AR_DATA
where PayDate < '2011-05-01'
group by InvNo
having sum(InvAmount)-sum(PaidAmount)=0) a
)
group by previous.InvNo, previous.InvDate
having sum(previous.InvAmount)-sum(previous.PaidAmount)>0
``````

For the January report, only the first subquery found something.  For Feb, the first two got results, for March and April, only the 3rd subquery found something.

It's possible that there's a simpler SQL to do this, but this is what I came up with.
Author Commented:
Let me learn it first what do you mean.

Thank you.
Commented:
Hi let me know if you still have questions regarding the solution I gave.  I don't normally follow-up on closing a question but I spent a lot more time than I normally allow myself to answer questions on this and would like to at least earn my points =)
Author Commented:
I am sorry, just back again.

I have to test it.

At the moment it seems will working.

Thank you very much for your help.
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Microsoft SQL Server 2005

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