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thebrenda
Starting Member

7 Posts
Posted - 10/12/2012 :  05:35:46  Show Profile  Reply with Quote
my data is below. i want to find accounts that are related to more than one customer. each account should only belong to a single customer, but i suspect that is not the case. in my examaple below i want to find accounts 2 and 4.

customer account
111111 1
111111 1
111111 2
222222 2
333333 3
333333 4
444444 4

bandi
Flowing Fount of Yak Knowledge

India
1711 Posts
Posted - 10/12/2012 :  05:46:27  Show Profile  Reply with Quote

DECLARE @tab TABLE(customer bigint, account int)
INSERT INTO @tab
SELECT 111111, 1 UNION ALL
SELECT 111111, 1 UNION ALL
SELECT 111111, 2 UNION ALL
SELECT 222222, 2 UNION ALL
SELECT 333333, 3 UNION ALL
SELECT 333333, 4 UNION ALL
SELECT 444444, 4
SELECT account, MIN(customer) FROM @tab
GROUP BY account
HAVING COUNT(distinct customer) > 1


--
Chandu
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webfred
Flowing Fount of Yak Knowledge

Germany
8529 Posts
Posted - 10/12/2012 :  05:46:49  Show Profile  Visit webfred's Homepage  Reply with Quote
Try this:

select distinct account
from YourTable as t1
where exists(select * from YourTable as t2 where t2.account=t1.account and t2.customer <> t1.customer)


Too old to Rock'n'Roll too young to die.
Edited by - webfred on 10/12/2012 05:50:29
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