SQL从XML查询

我正在尝试查询XML文件以提取用户/许可证信息。我似乎被卡住了。下面是我的数据集：SQL从XML查询

<?xml version="1.0" encoding="UTF-16"?> 
<Users> 
    <User> 
<UserName>Elise</UserName> 
<IsConnected>1</IsConnected> 
    <Modules> 
     <Module> 
<KeyType>LOGISTICS-LTD</KeyType> 
<KeyDesc>Limited Logistics User</KeyDesc> 
<DbType>MSS</DbType> 
<BitmaskOfLicensedModules>-255</BitmaskOfLicensedModules> 
<ReferingCount>0</ReferingCount> 
<InstallNo>0020534918</InstallNo> 
     </Module> 
     <Module> 
<KeyType>SAP-ADDONS</KeyType> 
<KeyDesc>SAP AddOns</KeyDesc> 
<DbType>MSS</DbType> 
<BitmaskOfLicensedModules>-255</BitmaskOfLicensedModules> 
<ReferingCount>0</ReferingCount> 
<InstallNo>0020534918</InstallNo> 
     </Module> 
     <Module> 
<KeyType>SAP0000007050</KeyType> 
<KeyDesc>Workflow</KeyDesc> 
<DbType>MSS</DbType> 
<BitmaskOfLicensedModules>-255</BitmaskOfLicensedModules> 
<ReferingCount>0</ReferingCount> 
<InstallNo>0020534918</InstallNo> 
     </Module> 
    </Modules> 
    </User> 
    <User> 
<UserName>alice</UserName> 
<IsConnected>0</IsConnected> 
    <Modules> 
     <Module> 
<KeyType>BASIS0001000061</KeyType> 
<KeyDesc>Magma Credit Cards</KeyDesc> 
<DbType>MSS</DbType> 
<BitmaskOfLicensedModules>-255</BitmaskOfLicensedModules> 
<ReferingCount>0</ReferingCount> 
<InstallNo>0020534918</InstallNo> 
     </Module> 
     <Module> 
<KeyType>LOGISTICS-LTD</KeyType> 
<KeyDesc>SAP Business One Limited Logistics User</KeyDesc> 
<DbType>MSS</DbType> 
<BitmaskOfLicensedModules>-255</BitmaskOfLicensedModules> 
<ReferingCount>0</ReferingCount> 
<InstallNo>0020534918</InstallNo> 
     </Module> 
     <Module> 
<KeyType>SAP-ADDONS</KeyType> 
<KeyDesc>SAP AddOns</KeyDesc> 
<DbType>MSS</DbType> 
<BitmaskOfLicensedModules>-255</BitmaskOfLicensedModules> 
<ReferingCount>0</ReferingCount> 
<InstallNo>0020534918</InstallNo> 
     </Module> 
     <Module> 
<KeyType>SAP0000007050</KeyType> 
<KeyDesc>Workflow</KeyDesc> 
<DbType>MSS</DbType> 
<BitmaskOfLicensedModules>-255</BitmaskOfLicensedModules> 
<ReferingCount>0</ReferingCount> 
<InstallNo>0020534918</InstallNo> 
     </Module> 
    </Modules> 
    </User> 
</UserS>'

我想要实现是一个SQL SELECT返回这样的数据：

UserName KeyType KeyDesc 
Elise LOGISTICS Limited Logistics 
Elise SAP-ADDONS SAP AddOns 
Elise SAP0000007050 Workflow 
Alice BASIS0001000061 Magma Credit Card 
Alice LOGISTICS Limited Logistics 
Alice SAP-ADDONS SAP AddOns 
Alice SAP0000007050 Workflow

，但是这是我一直被退回：

UserName KeyType KeyDesc 
NULL LOGISTICS Limited Logistics 
NULL SAP-ADDONS SAP AddOns 
NULL SAP0000007050 Workflow 
NULL BASIS0001000061 Magma Credit Card 
NULL LOGISTICS Limited Logistics 
NULL SAP-ADDONS SAP AddOns 
NULL SAP0000007050 Workflow

我不能找出如何从另一个节点返回UserName，任何帮助将是伟大的！以下是我的SQL：

DECLARE @xmlData XML 
set @xmlData='<?xml version="1.0"?> 
<Users> 
    <User> 
<UserName>Elise</UserName> 
<IsConnected>1</IsConnected> 
    <Modules> 
     <Module> 
<KeyType>LOGISTICS-LTD</KeyType> 
<KeyDesc>Limited Logistics User</KeyDesc> 
<DbType>MSS</DbType> 
<BitmaskOfLicensedModules>-255</BitmaskOfLicensedModules> 
<ReferingCount>0</ReferingCount> 
<InstallNo>0020534918</InstallNo> 
     </Module> 
     <Module> 
<KeyType>SAP-ADDONS</KeyType> 
<KeyDesc>SAP AddOns</KeyDesc> 
<DbType>MSS</DbType> 
<BitmaskOfLicensedModules>-255</BitmaskOfLicensedModules> 
<ReferingCount>0</ReferingCount> 
<InstallNo>0020534918</InstallNo> 
     </Module> 
     <Module> 
<KeyType>SAP0000007050</KeyType> 
<KeyDesc>Workflow</KeyDesc> 
<DbType>MSS</DbType> 
<BitmaskOfLicensedModules>-255</BitmaskOfLicensedModules> 
<ReferingCount>0</ReferingCount> 
<InstallNo>0020534918</InstallNo> 
     </Module> 
    </Modules> 
    </User> 
    <User> 
<UserName>alice</UserName> 
<IsConnected>0</IsConnected> 
    <Modules> 
     <Module> 
<KeyType>BASIS0001000061</KeyType> 
<KeyDesc>Magma Credit Cards</KeyDesc> 
<DbType>MSS</DbType> 
<BitmaskOfLicensedModules>-255</BitmaskOfLicensedModules> 
<ReferingCount>0</ReferingCount> 
<InstallNo>0020534918</InstallNo> 
     </Module> 
     <Module> 
<KeyType>LOGISTICS-LTD</KeyType> 
<KeyDesc>SAP Business One Limited Logistics User</KeyDesc> 
<DbType>MSS</DbType> 
<BitmaskOfLicensedModules>-255</BitmaskOfLicensedModules> 
<ReferingCount>0</ReferingCount> 
<InstallNo>0020534918</InstallNo> 
     </Module> 
     <Module> 
<KeyType>SAP-ADDONS</KeyType> 
<KeyDesc>SAP AddOns</KeyDesc> 
<DbType>MSS</DbType> 
<BitmaskOfLicensedModules>-255</BitmaskOfLicensedModules> 
<ReferingCount>0</ReferingCount> 
<InstallNo>0020534918</InstallNo> 
     </Module> 
     <Module> 
<KeyType>SAP0000007050</KeyType> 
<KeyDesc>Workflow</KeyDesc> 
<DbType>MSS</DbType> 
<BitmaskOfLicensedModules>-255</BitmaskOfLicensedModules> 
<ReferingCount>0</ReferingCount> 
<InstallNo>0020534918</InstallNo> 
     </Module> 
    </Modules> 
    </User> 
</Users>' 


SELECT 
    ref.value('UserName[1]', 'NVARCHAR(100)') AS 'User' , 
    ref.value('KeyType[1]', 'NVARCHAR (100)') AS 'Type' , 
    ref.value('KeyDesc[1]', 'NVARCHAR (100)') AS 'Desc'  
FROM @xmlData.nodes('/Users/User/Modules/Module') 
xmlData(ref)

来源

2017-08-25 JPC12

什么是您当前的查询，所以我们可以自己调试查询？听起来像一个XPath问题，可以通过一些导航属性来解决。 –

嘿，对不起，忘记发布我的查询！我现在编辑了这篇文章。 – JPC12

您需要更改像这样的查询的选择部分。

SELECT 
    ref.value('../../UserName[1]', 'NVARCHAR(100)') AS 'User' , 
    ref.value('KeyType[1]', 'NVARCHAR (100)') AS 'Type' , 
    ref.value('KeyDesc[1]', 'NVARCHAR (100)') AS 'Desc'  
    FROM @xmlData.nodes('/Users/User/Modules/Module') 
xmlData(ref)

来源

2017-08-25 14:30:22

用户是比模块更高的嵌套级别。

所以你可以从XML获得用户节点。然后交叉应用其中的模块。

SELECT 
    [User].value('UserName[1]', 'NVARCHAR(100)') AS 'User' , 
    [Module].value('KeyType[1]', 'NVARCHAR(100)') AS 'Type' , 
    [Module].value('KeyDesc[1]', 'NVARCHAR(100)') AS 'Desc'  
FROM @xmlData.nodes('Users/User') Users([User]) 
CROSS APPLY [User].nodes('Modules/Module') Modules([Module]);

来源

2017-08-25 14:49:22 LukStorms

SQL从XML查询

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