How about this?

Select CustID from customers where custID not in (select custid from
orders)

-dov 



-----Original Message-----
From: Che Vilnonis [mailto:[EMAIL PROTECTED] 
Sent: Tuesday, November 30, 2004 12:01 PM
To: CF-Talk
Subject: SQL Query question. Please help...

Say I have two simple queries:

<cfquery name="getCustsFromCusts" datasource="#DSN#"> SELECT CustID
FROM    Customers
</cfquery>

[and that query returns 700 records.]

<cfquery name="getCustsFromOrders" datasource="#DSN#"> SELECT CustID
FROM    Orders
</cfquery>

[and that query returns 500 records.]

The first query gets all Customer IDs. The second query gets all
Csutomer IDs that have placed orders. Is there some way in SQL, to
combine these two queries into one and return only the Customer IDs that
are in the 'Customers' table that ARE NOT in the 'Orders' table. Using
this example, 200 records would be returned.


Any help would be appreciated.
Che




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