Join issue - Return all rows for Table A and if amount table B, return row, else return null/0 field: rows, all, return, join, table

Join issue - Return all rows for Table A and if amount table B, return row, else return null/0 field

Big Picture – For a given month, if a tenant has an amount posted to the CamCharge table, I want to return the tenant and the charge amount (done with that tenant). If other tenants do not have an amount posted the to CamCharge table, I want to see the Tenant, but with a zero or null for charge amount. The following select statement works, except it returns two rows for tenants with a corresponding row in CamCharge table (i.e. $100) and a second row with a $0.

Here is my SQL Statement

Select distinct p.sCode
, tenant.sCode
, camcharg.dtmmyy as date
, isnull(chargtyp.sCode, 's-act') as charge
, camcharg.dexpense as expense
From Tenant join Property P ON p.hMy = tenant.hProperty
Left Outer Join camcharg ON tenant.hMyPerson = camcharg.hTenant
and camcharg.dtmmyy = '1/1/2006'
left outer Join chargtyp ON chargtyp.hMy = camcharg.hChargeCode
and chargtyp.scode = 's-act'
Where
p.scode = '4corner'
order by tenant.scode

Objective:
1.      Works: Return all rows from the “tenant” table with camcharg.dtmmyy = '1/1/2006' and chargtyp.scode 's-act'
2.      Works: If the “Camcharg” table does not have corresponding record (indicating no charges applied for ‘1/1/2006’ date range) then return $0 for camcharg.dExpense

P.Scode      T.scode date      charge      camcharge.dexpense
4corner      TenantA      1/1/2006      s-act      $0 <----Problem (extra row)
4corner      TenantA      1/1/2006      s-act      $100.
4corner      TenantB      1/1/2006      s-act      $0
4corner      TenantC      1/1/2006      s-act      $0


TenantA is the problem: The select statement returns an extra row if the Tenant has a corresponding row in the CamCharge table. If Tenant (i.e. Tenant A) has a corresponding row in Camcharge (i.e. dExpense= $100) then return only that row. Don’t return two rows (row one $0 and row 2 with the $100)

Thanks again

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Join issue - Return all rows for Table A and if amount table B, return row, else return null/0 field

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SQL Server 2005

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