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I want to join a table to itself to show all one-to-many records. Problem with code below is that each record appears twice.
What is a simple method to show record only once?
Thanks!
select distinct a.AHSCNBR ,
a.AENTID ,
b.AHSCNBR ,
b.AENTID
from bladdr a
join bladdr b on a.AHSCNBR = b.AHSCNBR
and a.AENTID <> b.AENTID
result:
0238559 A 0238559 B
0238559 B 0238559 A
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