Oracle apps query-p2p cycle

Question

Hi all....
I am using oracle 10g........
The following query is a union of two queries....The second query is a subset of the first meaning that it has fewer tables and fewer select columns as well....(I have to use union on the two queries....for a gud reason) .What i want is that the union return only the superset records from result of the union of the two queries when i pass a parameter at runtime like supplier_name as mentioned in the the query below .......
/* Formatted on 2012/05/14 16:49 (Formatter Plus v4.8.8) */
SELECT * FROM(SELECT DISTINCT reql.unit_meas_lookup_code "UNIT",
reqh.type_lookup_code "PR_TYPE",
reql.document_type_code "SUBTYPE",
reqh.segment1 "PR_NO", reqh.creation_date "PR DATE",
mtb.segment1 "ITEM_CODE",
pol.item_description "DESCRIPTION",
mcb.segment1 "INVENTORY_CATEGORY",
reql.manufacturer_part_number "MFG NO/DRG NO",
poh.authorization_status "AUTHORIZATION STATUS",
papf.full_name "BUYER", NULL "CUSTOMER",
DECODE (poh.type_lookup_code,
'RFQ', poh.segment1
) "RFQ NO",
DECODE (poh.type_lookup_code,
'RFQ', poh.creation_date
) "RFQ DATE",
NULL "RFQ SUPPLIER",
DECODE (poh.type_lookup_code,
'QUOTATION', poh.segment1
) "QTN NO",
DECODE (poh.type_lookup_code,
'QUOTATION', poh.reply_date
) "QTN DATE",
DECODE (poh.type_lookup_code,
'STANDARD', poh.segment1,
'BLANKET', poh.segment1,
'PLANNED', poh.segment1
) "PO_NO",
DECODE (poh.type_lookup_code,
'STANDARD', poh.creation_date,
'BLANKET', poh.creation_date,
'PLANNED', poh.creation_date
) "PO DATE",
pv.vendor_name "SUPPLIER",
NULL "SUPPLIER ACKNOWLEDGMENT DATE",
TRUNC
(reqh.creation_date
- TRUNC (poh.creation_date)
"NO OF DAYS TAKEN FROM PR TO PO",
DECODE (rcvh.asn_type,
'ASBN', rcvh.shipment_num
) "ASBN NO",
rcvh.receipt_num "RECEIPT NO",
rcvh.creation_date "RECEIPT DATE",
apia.invoice_num "INVOICE_NO",
NULL "QUALITY INSPECTION DATE",
rcvt.inspection_status_code "INSPECTION RESULT",
NULL "STOCKING DATE",
TRUNC (poh.creation_date)
- TRUNC (reqh.creation_date) "NO OF DAYS TAKEN FROM",
NULL "PV NO", NULL "PV DATE",
apc.amount "PAYMENT RELEASE AMOUNT",
apc.released_date "PAYMENT RELEASE DATE",
apc.payment_method_code "PAYMENT RELEASE MODE",
NULL "NO OF DAYS TAKEN FROM RECEIPT"
FROM po_requisition_headers_all reqh,
po_requisition_lines_all reql,
po_req_distributions_all reqd,
po_distributions_all pod,
po_headers_all poh,
po_lines_all pol,
po_line_locations_all poll,
rcv_shipment_headers rcvh,
rcv_shipment_lines rcvl,
rcv_transactions rcvt,
ap_invoice_distributions_all apid,
ap_invoices_all apia,
ap_payment_schedules_all aps,
ap_invoice_payments_all app,
ap_checks_all apc,
per_all_people_f papf,
po_vendors pv,
mtl_system_items_b mtb,
mtl_categories_b mcb,
mtl_item_categories mic
WHERE reqh.requisition_header_id =
reql.requisition_header_id
AND reql.requisition_line_id = reqd.requisition_line_id
AND pod.req_distribution_id = reqd.distribution_id
AND pol.po_line_id = pod.po_line_id
AND poh.po_header_id = pol.po_header_id
AND pol.po_line_id = poll.po_line_id
AND pod.po_distribution_id = apid.po_distribution_id
AND pod.po_distribution_id = rcvt.po_distribution_id
AND rcvl.shipment_header_id = rcvh.shipment_header_id
AND rcvh.shipment_header_id = rcvt.shipment_header_id
AND rcvt.po_distribution_id = apid.po_distribution_id
AND app.check_id = apc.check_id
AND apid.invoice_id = apia.invoice_id
AND apia.invoice_id = app.invoice_id
AND app.invoice_id = aps.invoice_id
AND poh.agent_id = papf.person_id
AND poh.vendor_id = pv.vendor_id
AND pol.item_id = mtb.inventory_item_id
AND mic.inventory_item_id = pol.item_id
AND poh.authorization_status = 'APPROVED'
AND mcb.category_id = mic.category_id
UNION
SELECT DISTINCT NULL "UNIT", NULL "PR_TYPE", NULL "SUBTYPE",
NULL "PR_NO", NULL "PR DATE",
mtb.segment1 "ITEM_CODE",
pol.item_description "DESCRIPTION",
mcb.segment1 "INVENTORY_CATEGORY", NULL,
poh.authorization_status "AUTHORIZATION STATUS",
papf.full_name "BUYER", NULL "CUSTOMER",
DECODE (poh.type_lookup_code,
'RFQ', poh.segment1
) "RFQ NO",
DECODE (poh.type_lookup_code,
'RFQ', poh.creation_date
) "RFQ DATE",
NULL "RFQ SUPPLIER",
DECODE (poh.type_lookup_code,
'QUOTATION', poh.segment1
) "QTN NO",
DECODE (poh.type_lookup_code,
'QUOTATION', poh.reply_date
) "QTN DATE",
DECODE (poh.type_lookup_code,
'STANDARD', poh.segment1,
'BLANKET', poh.segment1,
'PLANNED', poh.segment1
) "PO_NO",
DECODE (poh.type_lookup_code,
'STANDARD', poh.creation_date,
'BLANKET', poh.creation_date,
'PLANNED', poh.creation_date
) "PO DATE",
pv.vendor_name "SUPPLIER",
NULL "SUPPLIER ACKNOWLEDGMENT DATE", NULL,
DECODE (rcvh.asn_type,
'ASBN', rcvh.shipment_num
) "ASBN NO",
rcvh.receipt_num "RECEIPT NO",
rcvh.creation_date "RECEIPT DATE",
apia.invoice_num "INVOICE_NO",
NULL "QUALITY INSPECTION DATE",
rcvt.inspection_status_code "INSPECTION RESULT",
NULL "STOCKING DATE", NULL, NULL "PV NO",
NULL "PV DATE", apc.amount "PAYMENT RELEASE AMOUNT",
apc.released_date "PAYMENT RELEASE DATE",
apc.payment_method_code "PAYMENT RELEASE MODE",
NULL "NO OF DAYS TAKEN FROM RECEIPT"
FROM po_distributions_all pod,
po_headers_all poh,
po_lines_all pol,
rcv_shipment_headers rcvh,
rcv_shipment_lines rcvl,
rcv_transactions rcvt,
ap_invoice_distributions_all apid,
ap_invoices_all apia,
ap_payment_schedules_all aps,
ap_invoice_payments_all app,
ap_checks_all apc,
per_all_people_f papf,
po_vendors pv,
mtl_system_items_b mtb,
mtl_categories_b mcb,
mtl_item_categories mic
WHERE pol.po_line_id = pod.po_line_id
AND poh.po_header_id = pol.po_header_id
AND pod.po_distribution_id = apid.po_distribution_id
AND pod.po_distribution_id = rcvt.po_distribution_id
AND rcvl.shipment_header_id = rcvh.shipment_header_id
AND rcvh.shipment_header_id = rcvt.shipment_header_id
AND rcvt.po_distribution_id = apid.po_distribution_id
AND app.check_id = apc.check_id
AND apid.invoice_id = apia.invoice_id
AND apia.invoice_id = app.invoice_id
AND app.invoice_id = aps.invoice_id
AND poh.agent_id = papf.person_id
AND poh.vendor_id = pv.vendor_id
AND pol.item_id = mtb.inventory_item_id
AND mic.inventory_item_id = pol.item_id
AND poh.authorization_status = 'APPROVED'
AND mcb.category_id = mic.category_id) a
WHERE 1 = 1
AND ( a.pr_type = NVL (:pr_type, a.pr_type)
OR (:pr_type IS NULL AND a.pr_type IS NULL)
AND ( a.pr_no = NVL (:pr_no, a.pr_no)
OR (:pr_no IS NULL AND a.pr_no IS NULL)
AND ( a.unit = NVL (:unit_lookup_code, a.unit)
OR (:unit_lookup_code IS NULL AND a.unit IS NULL)
AND a.supplier = NVL (:supplier_name, a.supplier)
AND a.inventory_category = NVL (:inventory_category, a.inventory_category)
AND a.buyer = NVL (:buyer_name, a.buyer)
AND a.invoice_no = NVL (:invoice_no, a.invoice_no)
AND a.item_code = NVL (:item_code, a.item_code)
Edited by: Dave on May 14, 2012 5:08 AM
Edited by: Dave on May 14, 2012 5:14 AM

Answer 1

Dave wrote:
What i want is that the union return only the superset records from result of the union of the two queriesThat is what Union does.
If it doesn't, then it means it's not real duplicates.
For example :Scott@my11g SQL>with
  2  table_A(val) as (
  3  select 'This is a duplicate' from dual
  4  union all select 'This is another' from dual
  5  union all select 'This is not' from dual
  6  )
  7  ,table_B(val) as (
  8  select 'This is a duplicate' from dual
  9  union all select 'This is another' from dual
10  )
11  ------ end of sample data ------
12  select val from table_A
13  union
14  select val from table_B ;
Scott@my11g SQL>/
VAL
This is a duplicate
This is another
This is notSee ? only 3 rows from the 5 (3+2) originals.
But if I add some pseudo columns Which_table with different values for each table, then :Scott@my11g SQL>with
  2  table_A(val) as (
  3  select 'This is a duplicate' from dual
  4  union all select 'This is another' from dual
  5  union all select 'This is not' from dual
  6  )
  7  ,table_B(val) as (
  8  select 'This is a duplicate' from dual
  9  union all select 'This is another' from dual
10  )
11  ------ end of sample data ------
12  select val, 'from table_A' which_table from table_A
13  union
14  select val, 'from table_B' from table_B ;
VAL                 WHICH_TABLE
This is a duplicate from table_A
This is a duplicate from table_B
This is another     from table_A
This is another     from table_B
This is not         from table_AThere is now 5 rows, they are no longer duplicates.