Question

我正在寻找一种搜索sql xml列中所有节点的方法。

例如，如果我有以下XML

<ArrayOfEntityPropertyOfString xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"    xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <EntityPropertyOfString>
    <Name>User Label 1</Name>
    <Value>TX 12107210</Value>
  </EntityPropertyOfString>
  <EntityPropertyOfString>
    <Name>User Label 2</Name>
    <Value>BONUS $350/DAY</Value>
  </EntityPropertyOfString>
  <EntityPropertyOfString>
    <Name>User Defined Date 9</Name>
    <Value>11/09/2011</Value>
  </EntityPropertyOfString>
</ArrayOfEntityPropertyOfString>

如何搜索包含“bonus”一词的所有值？

提前谢谢。

Answer 1

declare @xml xml =
'<ArrayOfEntityPropertyOfString xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"    xmlns:xsd="http://www.w3.org/2001/XMLSchema">
 <EntityPropertyOfString>
  <Name>User Label 1</Name>
  <Value>TX 12107210</Value>
 </EntityPropertyOfString>
<EntityPropertyOfString>
<Name>User Label 2</Name>
<Value>BONUS $350/DAY</Value>
</EntityPropertyOfString>
<EntityPropertyOfString>
<Name>User Defined Date 9</Name>
<Value>11/09/2011</Value>
 </EntityPropertyOfString>
 </ArrayOfEntityPropertyOfString>'

select T.N.value('local-name(.)', 'nvarchar(max)') as NodeName,
       T.N.value('text()[1]', 'nvarchar(max)') as NodeValue
from @xml.nodes('//*') as T(N)
where T.N.value('text()[1]', 'nvarchar(max)') like '%bonus%'

结果：

NodeName             NodeValue
-------------------- --------------------
Value                BONUS $350/DAY

对于表格，它可能如下所示：

declare @T table (ID int identity primary key, XMLCol xml)

declare @xml xml =
'<ArrayOfEntityPropertyOfString xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"    xmlns:xsd="http://www.w3.org/2001/XMLSchema">
   <EntityPropertyOfString>
     <Name>User Label 1</Name>
     <Value>TX 12107210</Value>
   </EntityPropertyOfString>
   <EntityPropertyOfString>
     <Name>User Label 2</Name>
     <Value>BONUS $350/DAY</Value>
   </EntityPropertyOfString>
   <EntityPropertyOfString>
     <Name>User Defined Date 9</Name>
     <Value>11/09/2011</Value>
   </EntityPropertyOfString>
 </ArrayOfEntityPropertyOfString>'

insert into @T values (@xml)
insert into @T values (@xml)

select T1.ID,
       T2.N.value('local-name(.)', 'nvarchar(max)') as NodeName,
       T2.N.value('text()[1]', 'nvarchar(max)') as NodeValue
from @T as T1
  cross apply T1.XMLCol.nodes('//*') as T2(N)  
where T2.N.value('text()[1]', 'nvarchar(max)') like '%bonus%'

结果：

ID          NodeName             NodeValue
----------- -------------------- --------------------
1           Value                BONUS $350/DAY
2           Value                BONUS $350/DAY

Answer 2

如果您可以假设奖金永远不会出现在标签中......

SELECT
  ...
FROM
  ...
WHERE COL_NAME LIKE '%bonus%'

在所有节点中搜索xml列

2 个答案: