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Do an exception join on the detail file
This will list all the detail records that do NOT have an order number in the header file
Select a.* from ORDDETAIL a exception join ORDHEADER b on
a. ODOHNO = b. OHOHNO
This is the OPPOSITE of a join which will give you all the detail records that have an order number in the header
Select a.* from ORDDETAIL a join ORDHEADER b on
a. ODOHNO = b. OHOHNO
Alan Shore
E-mail : ASHORE@xxxxxxxx
Phone [O] : (631) 200-5019
Phone [C] : (631) 880-8640
'If you're going through hell, keep going.'
Winston Churchill
-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxxxxxxxx] On Behalf Of James H. H. Lampert
Sent: Tuesday, November 26, 2019 2:22 PM
To: Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxxxxxxxx>
Subject: [EXTERNAL] Quick SQL question
Ladies and Gentlemen:
Given a header table H, and a detail table D, tied together with an "order number" field that is OHOHNO in H, and ODOHNO in D, is there an SQL syntax that would produce a list of "orphaned" details that have no header?
--
JHHL
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