Aging Query - supressing values across subsequent columns

Question

Oracle 11.2.0.3...
I have this query... working on it in SQL*Navigator.
We pay all vendors with Net 20, Net 25 and Net 30 terms in due date + 15 days. I'm trying to develop a query that will tell me who is due now, who will be due in the next 7, next 10, next 14 and next 21 days.
The query below returns not due, due, due +7, etc... but anything that is due is also showing up in the +7, +10, etc - because if it's due now, it will still be due in a week!
How can I suppress these values if they are already due?
(or, if they're due in +7 days, how can I suppress in +10, +14, etc?)
SELECT
pv.vendor_name "Vendor",
nps.invoice_number "Invoice",
nps.invoice_date "Invoice Date",
nps.due_date "Due Date",
inv.terms "Terms",
(TO_DATE (sysdate) - nps.invoice_date) "Days Entered",
(CASE
when to_date(nps.due_date) < to_date(sysdate)
then (to_date(sysdate) - to_date(nps.due_date))
else NULL
end) "Days Overdue",
nps.amount_remaining "Amount Remaining",
-- 0-15
(CASE
WHEN (TO_DATE (sysdate) - nps.invoice_date) < 45
THEN nps.amount_remaining
ELSE NULL
END
) "Not Due",
(CASE
WHEN (TO_DATE (sysdate) - nps.invoice_date) >= 45
THEN nps.amount_remaining
ELSE NULL
END
) "Due" ,
(CASE
WHEN (TO_DATE (sysdate+7) - nps.invoice_date) >= 45
THEN nps.amount_remaining
ELSE NULL
END
) "+7 Days" ,
(CASE
WHEN (TO_DATE (sysdate+10) - nps.invoice_date) >= 45
THEN nps.amount_remaining
ELSE NULL
END
) "+10 Days" ,
(CASE
WHEN (TO_DATE (sysdate+14) - nps.invoice_date) >= 45
THEN nps.amount_remaining
ELSE NULL
END
) "+14 Days" ,
(CASE
WHEN (TO_DATE (sysdate+21) - nps.invoice_date) >= 45
THEN nps.amount_remaining
ELSE NULL
END
) "+21 Days"
FROM
inv,
pv,
nps
WHERE
and nps.amount_remaining <> 0
and inv.terms in ('Net 20', 'Net 25', 'Net 30')
sample output:
Vendor     Invoice     Invoice Date     Due Date     Terms     Days Entered     Days Overdue     Amount Remaining     Not Due     Due     +7 Days     +10 Days     +14 Days     +21 Days
vendor 1     00470871     12/27/2012     1/26/2013     Net 30     12          126.62     126.62                         
vendor 2     59355648     11/28/2012     12/28/2012 Net 30     41     11     538.75     538.75          538.75     538.75     538.75     538.75
vendor 3     75793062     12/4/2012     1/3/2013     Net 30     35     5     950     950               950     950     950
vendor 4     52835     12/13/2012     1/13/2013     Net 30     26          298.92     298.92                         298.92
vendor 4     52814     12/4/2012     1/3/2013     Net 30     35     5     330     330               330     330     330
any sql gurus have ideas?
Edited by: camforbes on Jan 8, 2013 1:24 PM

Answer 1

Hi,
It's very unclear what you want, but I think something more or less like this will do what you want:
WITH    got_grp            AS
     SELECT  pv.vendor_name
     ,     nps.invoice_number
     ,     nps.invoice_date
     ,     nps.due_date
     ,     inv.terms
     ,     SYSDATE - nps.invoice_date     AS days_entered
     ,     CASE
               WHEN  nps.due_date < SYSDATE
               THEN  SYSDATE - nps.due_date
               ELSE  NULL
          END                    AS days overdue
     ,     nps.amount_remaining
     ,     CASE
               WHEN  nps.invoice_date  > SYSDATE - 24     THEN  'Over 21 Days'
               WHEN  nps.invoice_date  > SYSDATE - 31     THEN  '+21 Days'
               WHEN  nps.invoice_date  > SYSDATE - 35     THEN  '+14 Days'
               WHEN  nps.invoice_date  > SYSDATE - 38     THEN  '+7 Days'
               WHEN  nps.invoice_date  > SYSDATE - 45     THEN  'Due'
                                                               ELSE  'Not Due'
          END                         AS grp
     FROM     inv
     JOIN     pv     ON ...
     JOIN     nps     ON ...
     WHERE     nps.amount_remaining     != 0
     AND      inv.terms           IN ('Net 20', 'Net 25', 'Net 30')
SELECT  pv.vendor_name
,     nps.invoice_number
,     nps.invoice_date
,     nps.due_date
,     inv.terms
,     days_entered
,     days overdue
,     CASE  WHEN grp = 'Not Due'  THEN amount_remianing END     AS not_due
,     CASE  WHEN grp = 'Due'      THEN amount_remianing END     AS due
,     CASE  WHEN grp = '+7 Days'  THEN amount_remianing END     AS plus_7_days
,     CASE  WHEN grp = '+14 Days' THEN amount_remianing END     AS plus_14_days
,     CASE  WHEN grp = '+21 Days' THEN amount_remianing END     AS plus_21_days
FROM     got_grp
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