Question

我有以下代码：

allKeys

返回：

SELECT distinct 
msi.SupplierNumber
    ,Province.[Name] [ProvinceName]
    ,District.[Code] [DistrictCode]
    ,District.[Name] [DistrictName]
    ,Municipality.[Code] [MunicipalityCode]
    ,Municipality.[Name] [MunicipalityName]
    ,City.[Code] [CityCode]
    ,City.[Name] [CityName]
    ,Suburb.[Code] [SuburbCode]
    ,Suburb.[Name] [SuburbName]
    ,Ward.[Code] [WardCode]
FROM
    dbo.MasterSupplierIdentification msi WITH (NOLOCK)
    INNER JOIN dbo.[LinkMasterSupplierCommodity] lmsc WITH (NOLOCK) ON lmsc.MasterSupplierIdentificationID = msi.MasterSupplierIdentificationID
    INNER JOIN dbo.[MasterCommodityGroup] mcg WITH (NOLOCK) ON mcg.[MasterCommodityGroupID] = lmsc.MasterCommodityID
    INNER JOIN dbo.[MasterCommodityLocation] mcl WITH (NOLOCK) ON mcl.[MasterCommodityID] = mcg.[MasterCommodityID]
    INNER JOIN dbo.[MDWard] Ward WITH (NOLOCK) ON Ward.[WardID] = mcl.[WardID]
    INNER JOIN dbo.[MDSuburb] Suburb WITH (NOLOCK) ON Suburb.[SuburbID] = Ward.[SuburbID]
    INNER JOIN dbo.[MDCity] City WITH (NOLOCK) ON City.[CityID] = Suburb.[CityID]
    INNER JOIN dbo.[MDMunicipality] Municipality WITH (NOLOCK) ON Municipality.[MunicipalityID] = City.[MunicipalityID]
    INNER JOIN dbo.[MDDistrict] District WITH (NOLOCK) ON District.[DistrictID] = Municipality.[DistrictID]
    INNER JOIN dbo.[MDProvince] Province WITH (NOLOCK) ON Province.[ProvinceID] = District.[ProvinceID]
WHERE 
    msi.SupplierNumber = 'MAAA0000002'
    and Suburb.Code = '181001001'
for xml auto, Root('Suppliers'), elements xsinil

在这个具体的例子中，Wards重复。我想将它包装在父节点中。似乎这样做的唯一方法是使用子查询，其中我指定不是AUTO而是在子查询中指定PATH和ROOT并将其作为TYPE返回。

Answer 1

你的最后一句是正确的。如果要查看父节点中包含的嵌套数据（1：多关系），则必须将它们包含在一个块中。

一个提示：你到处都使用WITH (NOLOCK)。除非你真的知道你在做什么，除非你有充分的理由，这是一件危险的事情。很常见，但不是很好的做法...

尝试这样（未经测试）：

SELECT distinct 
msi.SupplierNumber
    ,Province.[Name] [ProvinceName]
    ,District.[Code] [DistrictCode]
    ,District.[Name] [DistrictName]
    ,Municipality.[Code] [MunicipalityCode]
    ,Municipality.[Name] [MunicipalityName]
    ,City.[Code] [CityCode]
    ,City.[Name] [CityName]
    ,Suburb.[Code] [SuburbCode]
    ,Suburb.[Name] [SuburbName]

    ,WardXml.XmlAsBlock
FROM
    dbo.MasterSupplierIdentification msi WITH (NOLOCK)
    INNER JOIN dbo.[LinkMasterSupplierCommodity] lmsc WITH (NOLOCK) ON lmsc.MasterSupplierIdentificationID = msi.MasterSupplierIdentificationID
    INNER JOIN dbo.[MasterCommodityGroup] mcg WITH (NOLOCK) ON mcg.[MasterCommodityGroupID] = lmsc.MasterCommodityID
    INNER JOIN dbo.[MasterCommodityLocation] mcl WITH (NOLOCK) ON mcl.[MasterCommodityID] = mcg.[MasterCommodityID]
    INNER JOIN dbo.[MDWard] Ward WITH (NOLOCK) ON Ward.[WardID] = mcl.[WardID]
    INNER JOIN dbo.[MDSuburb] Suburb WITH (NOLOCK) ON Suburb.[SuburbID] = Ward.[SuburbID]
    INNER JOIN dbo.[MDCity] City WITH (NOLOCK) ON City.[CityID] = Suburb.[CityID]
    INNER JOIN dbo.[MDMunicipality] Municipality WITH (NOLOCK) ON Municipality.[MunicipalityID] = City.[MunicipalityID]
    INNER JOIN dbo.[MDDistrict] District WITH (NOLOCK) ON District.[DistrictID] = Municipality.[DistrictID]
    INNER JOIN dbo.[MDProvince] Province WITH (NOLOCK) ON Province.[ProvinceID] = District.[ProvinceID]

    CROSS APPLY
    (
      SELECT WardCode FROM dbo.[MDWard] Ward WITH (NOLOCK) 
      WHERE Ward.[WardID] = mcl.[WardID]
      FOR XML PATH('Ward'),TYPE
    ) AS WardXml(XmlAsBlock)
WHERE 
    msi.SupplierNumber = 'MAAA0000002'
    and Suburb.Code = '181001001'
for xml auto, Root('Suppliers'), elements xsinil

SQL for xml auto elements wrap node

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