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SQL Syntax question #10

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Last Modified: 2010-04-21
I have this query and I need to return 0 for the nested queries results for 'requests' and 'total amount'. I have used ISNULL but I still get back blank values. Can anyone help.

SELECT *
FROM AuditorTemp a
      LEFT JOIN (
            select users.id as UserID, users.first_name + ' ' + users.last_name as Name, count(*) as 'requests', ISNULL(sum(u.amount),0) as 'total amount'
            from takeoff_requests t, takeoff_request_accounts tra, accounts_master am, underpayments u, users
            where t.manager_action = 'complete'
            and t.id = tra.takeoff_request_id
            and tra.account_id = am.account_id
            and tra.account_id = u.account_id
            and u.user_id = users.id
            group by users.id, users.last_name, users.first_name
      ) b ON a.id = b.userid
Order by a.id
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