1

私が使用しているコードは次のとおりです。

DECLARE @returnXML XML  

SELECT   @ReturnXML = 
(SELECT [StudentID/SSN] = ssn, 
        [StudentName/LastName] = lastname,
        [StudentName/FirstName] = firstname,
        [StudentName/MiddleInitial] = Middlename,
        [PrimaryAddress/Street1] = line1,
        [PrimaryAddress/Street2] = line2,
        [PrimaryAddress/City] = city,
        [PrimaryAddress/State] = state,
        [PrimaryAddress/Country] = ISNULL(country,null),
        [PrimaryAddress/Zip] = zipcode

FROM StudentTable
FOR     XML Path('Student'), ROOT('Root'),TYPE
)

SELECT  @ReturnXML  
FOR     XML PATH('');

国ノードについてのみ、xsi:nil="true" を設定する必要があります。ありがとう

4

1 に答える 1

1

XSINIL パラメータを使用した NULL 値の要素の生成

条項に追加ELEMENTS XSINILします。FOR XML

SELECT   @ReturnXML = 
(SELECT [StudentID/SSN] = ssn, 
        [StudentName/LastName] = lastname,
        [StudentName/FirstName] = firstname,
        [StudentName/MiddleInitial] = Middlename,
        [PrimaryAddress/Street1] = line1,
        [PrimaryAddress/Street2] = line2,
        [PrimaryAddress/City] = city,
        [PrimaryAddress/State] = state,
        [PrimaryAddress/Country] = country,
        [PrimaryAddress/Zip] = zipcode
FROM StudentTable
FOR XML Path('Student'), ROOT('Root'), TYPE, ELEMENTS XSINIL
)

上記はxsi:nil="true"、XML 内のすべてのノードに対して設定されますNULL。

1 つのフィールドに対してのみ実行するには、サブクエリを使用しELEMENTS XSINILてそのフィールドの XML を作成します。

SELECT   @ReturnXML = 
(SELECT [StudentID/SSN] = ssn, 
        [StudentName/LastName] = lastname,
        [StudentName/FirstName] = firstname,
        [StudentName/MiddleInitial] = Middlename,
        [PrimaryAddress/Street1] = line1,
        [PrimaryAddress/Street2] = line2,
        [PrimaryAddress/City] = city,
        [PrimaryAddress/State] = state,
        [PrimaryAddress] = (SELECT Country = country FOR XML PATH(''), TYPE, ELEMENTS XSINIL),
        [PrimaryAddress/Zip] = zipcode
FROM StudentTable
FOR XML Path('Student'), ROOT('Root'), TYPE
)
于 2013-04-30T05:23:22.143 に答える