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Exclude a Zero Value

melikins asked
Last Modified: 2012-08-14
I would like to modify a report that calculates residents' outstanding balances.  The below code returns a row (for each resident) if the balance is $0 or an actual (positive or negative) balance. How do I use a case statement to exclude $0 balances?
IsNull((Select SUM(tr.sTotalAmount) FROM trans tr
            WHERE (tr.hretentionacct in (1,4,5) or
                      tr.snotes in (':Deposit Credit', ':Security Deposit Credit'))
                  and tr.itype = 7
                  and tr.sTotalAmount > 0
                  and tr.uPostDate < (DATEADD(mm,1,('08/01/2012')))
                  and t.hMyPerson = tr.hPerson ),0) -
IsNull((Select SUM(d.samount) from trans tr left outer join detail d on tr.hmy =            d.hchkorchg
            WHERE (tr.hretentionacct in (1,4,5) or
            tr.snotes in (':Deposit Credit', ':Security Deposit Credit'))
                  and tr.itype = 7
                  and tr.sTotalAmount > 0
                  and tr.uPostDate < (DATEADD(mm,1,('08/01/2012')))
                  and d.cashpost < (DATEADD(mm,1,('08/01/2012')))
                  and t.hMyPerson = tr.hPerson ),0) as 'Current Owed'

Thanks in advance for your time!
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