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SQL where NOT DISTICNT

timokeeffe
timokeeffe asked
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Last Modified: 2009-07-29
I have a shipping table with order number called FDDOCO. I need to select only orders which have 2 or more FDDOCO. what this mean is that each order is usually represented once in shipping, but sometimes orders are split up and shipped in 2 or 3 seperate shipments with the same FDDOCO num. any ideas???
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Commented:
-- select the distinct FDDOCO numbers that are in tblShipping more than once.
SELECT FDDOCO from tblShipping
group by FDDOCO
having count(FDDOCO) > 1

If you then want to select all orders that have an FDDOCO number that is duplicated then you would use a subselect
select * from tblShipping
inner join
(
SELECT FDDOCO from tblShipping
group by FDDOCO
having count(FDDOCO) > 1
) as tmp
on tblShipping.FDDOCO = tmp.FDDOCO
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