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Grasshopper
      
Group: General Forum Members
Last Login: Thursday, April 18, 2013 2:57 AM
Points: 15,
Visits: 62
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select * from geodata.TB_City A inner join (select citydefaultname, CityCountryID, avg(CityLatitude) 'CityLatitude', avg(CityLongitude) 'CityLongitude' from geodata.TB_City group by citydefaultname, CityCountryID) B on A.CityCountryID = b.CityCountryID and a.CityDefaultName = b.CityDefaultName and ISNULL(ISNULL(a.CityProvinceID_3,a.CityProvinceID_2),a.CityProvinceID_1) = ISNULL(ISNULL(b.CityProvinceID_3,b.CityProvinceID_2),b.CityProvinceID_1)
I want to use condition on CityProvinceID_3,CityProvinceID_2,CityProvinceID_1 but group by only on citydefaultname,CityCountryID
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