Find the invoices po wise and non po wise

Question

hi guys i'm working on oracle 10g r2
my question is
i have 2 tables
ap_invoices_all
ap_invoice_lines_all
select invoice_id from ap_invoices_all where invoice_num = '1010'output is
invoice_id
100now query 2nd table
select * from ap_invoice_lines_all where invoice_id = 100output is [assum jus 2 or 3 columns]
invoice_id-----------line_type------------po_header_id
100---------------------item-----------------400
100---------------------tax------------------null
100---------------------tax-------------------nullmy question is i want to check if ap_invoice_lines_all have po_header_id in respect of invoice_id then it will be show in po_invoices categories
i have make a query like this
select * from ap_invoices_all i
where invoice_num = '1010'
and exists ( select 1 from ap_invoice_lines_all
where invoice_id = i.invoice_id and po_header_id is null)above query also shows me the records why?? because ap_invoice_lines_all have 3 lines 2 have null in po_header_id columns ..
my simple question is i want jus checked in ap_invoice_lines_all table if po_header_id is not null in corresponding invoices then it shows me INVOICES PO_WISE otherwise it cant show in
INVOICES NON-PO-WISE
my this test case shows in both ways [INVOCIES PO WISE] and [INVOICES NON-PO WISE] . i want dat record shud be show in INVOICES PO WISE only .
help

Answer 1

Pl do not post duplicate threads - how to find po_invoices and non-po_invoices
Srini