如何获得SchoolDetail.Name的总计数？

Question

SELECT     
    Districts.DistrictDescription,Count(SchoolDetail.Name) As Responded, 
    Sum(Case When School_WASH.WaterAssetCondition = 'Improved' Then 1 Else 0 End) as H2Improved,
    Sum(Case When School_WASH.WaterAssetCondition = 'Unimproved' Then 1 Else 0 End) as H2NotImproved,
    Sum(Case When School_WASH.WaterTypeFunc = 'Functional' Then 1 Else 0 End) as H2Func,
    Sum(Case When School_WASH.WaterTypeFunc = 'Not Functional' Then 1 Else 0 End) as H2NotFunc,
    Sum(Case When School_WASH.ToiletsImproved = 'Improved' Then 1 Else 0 End) as ToiletsImproved,
    Sum(Case When School_WASH.ToiletsImproved = 'Unimproved' Then 1 Else 0 End) as ToiletsUnimproved,
    Sum(Case When School_WASH.ToiletsFunc = 'Functional' Then 1 Else 0 End) as ToiletsFunc,
    Sum(Case When School_WASH.ToiletsFunc = 'Not Functional' Then 1 Else 0 End) as ToiletsNotFunc,
    Sum(Case When School_WASH.FuncToiletsAccessible = 'Yes' Then 1 Else 0 End) as Accessible,
    Sum(Case When School_WASH.FuncToiletsAccessible = 'No' Then 1 Else 0 End) as NotAccessible,
    Sum(Case When School_WASH.StudentToiltesSexSeparated = 'Yes' Then 1 Else 0 End) as SexSep,
    Sum(Case When School_WASH.StudentToiltesSexSeparated = 'No' Then 1 Else 0 End) as NoSexSep,
    Sum(Case When School_WASH.HandWashFacWithWater = 'Yes' Then 1 Else 0 End) as HandWashWater,
    Sum(Case When School_WASH.HandWashFacWithWater = 'No' Then 1 Else 0 End) as NoHandWashWater,
    Sum(Case When School_WASH.HandWashFacWithWaterSoap = 'Yes' Then 1 Else 0 End) as HandWashWaterSoap,
    Sum(Case When School_WASH.HandWashFacWithWaterSoap = 'No' Then 1 Else 0 End) as NoHandWashWaterSoap
FROM
    Districts 
INNER JOIN
    SchoolDetail ON Districts.ID = SchoolDetail.DistrictID 
INNER JOIN
    School_WASH ON SchoolDetail.Code = School_WASH.SchoolCode
WHERE
    School_WASH.SchoolYear = '2016'
GROUP BY
    Districts.DistrictDescription  

Answer 1

如果我理解你在寻找什么，你只需要将你的计数作为子查询运行

替换这个：

(select count(Name) from SchoolDetail)  As Responded

通过

zip