troubleshooting Question

Nested query 2008 , exclude second (nested query) possible?

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Goo123Flag for United States of America asked on
Microsoft Excel
13 Comments1 Solution283 ViewsLast Modified:
Is it possible to have a nested query  where the nested query 'excludes' the record that is needed in the main query?  


All patient's that are in IP with financial classes NX, FL, SC and exclude patient's that are in TX and MP and in financial classes in NX, BL, TN,OK.  

This is what I thought would work, but doesn't??

Select patient type, financial class
From   demographics
Where patient type = IP
            and financial class = NX,FL,SC
            and patient type not in (select patient type
 from demographics
where patient type   in('tx','mp') and financial class in ('nx','bl','tn','ok'))

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