Sql server 对XML列的查询

我有一个SQL Server 2012表，其中一列是XML数据类型

以下是其中一个值：

<items>
  <Counter CounterName="processed" CounterValue="70" />
  <Counter CounterName="deferred" CounterValue="1" />
  <Counter CounterName="delivered" CounterValue="70" />
  <Counter CounterName="sent" CounterValue="70" />
  <Counter CounterName="click" CounterValue="2" />
  <Counter CounterName="open" CounterValue="22" />
</items>

这个怎么样：

DECLARE @input TABLE (ID INT NOT NULL, XmlCol XML)

INSERT INTO @input VALUES(1, '<items>
  <Counter CounterName="processed" CounterValue="70" />
  <Counter CounterName="deferred" CounterValue="1" />
  <Counter CounterName="delivered" CounterValue="70" />
  <Counter CounterName="sent" CounterValue="70" />
  <Counter CounterName="click" CounterValue="2" />
  <Counter CounterName="open" CounterValue="22" />
</items>'), (2, '<items>
  <Counter CounterName="processed" CounterValue="170" />
  <Counter CounterName="deferred" CounterValue="11" />
  <Counter CounterName="delivered" CounterValue="170" />
  <Counter CounterName="sent" CounterValue="170" />
  <Counter CounterName="click" CounterValue="12" />
  <Counter CounterName="open" CounterValue="212" />
</items>')

SELECT
    ID,
    Processed = xc.value('(Counter[@CounterName="processed"]/@CounterValue)[1]', 'int'),
    Deferred = xc.value('(Counter[@CounterName="deferred"]/@CounterValue)[1]', 'int'),
    Delivered = xc.value('(Counter[@CounterName="delivered"]/@CounterValue)[1]', 'int'),
    [Sent] = xc.value('(Counter[@CounterName="sent"]/@CounterValue)[1]', 'int'),
    Click = xc.value('(Counter[@CounterName="click"]/@CounterValue)[1]', 'int'),
    [Open] = xc.value('(Counter[@CounterName="open"]/@CounterValue)[1]', 'int')
FROM    
    @input
CROSS APPLY
    XmlCol.nodes('/items') AS XT(XC)

DECLARE@input表（ID INT不为NULL，XmlCol XML）
插入@input VALUES（1，'
'), (2, '
')
挑选
身份证件
Processed=xc.value（'（计数器[@CounterName=“Processed”]/@CounterValue）[1]，'int'），
Deferred=xc.value（'（计数器[@CounterName=“Deferred”]/@CounterValue）[1]，'int'），
Delivered=xc.value（'（计数器[@CounterName=“Delivered”]/@CounterValue）[1]，'int'），
[Sent]=xc.value（'（计数器[@CounterName=“Sent”]/@CounterValue）[1]，'int'），
单击=xc.value（'（计数器[@CounterName=“单击”]/@CounterValue）[1]，'int'），
[Open]=xc.value（'（计数器[@CounterName=“Open”]/@CounterValue）[1]，'int'）
从…起
@输入
交叉应用
XmlCol.nodes（'/items'）作为XT（XC）

给我一个输出：

---

这篇文章深入讨论了对XML的查询，您能更具体一点吗？我对“这里有一个链接，去寻找答案”的解决方案不是很在行。看看如何学习钓鱼。宾果班戈。谢谢

DECLARE @input TABLE (ID INT NOT NULL, XmlCol XML)

INSERT INTO @input VALUES(1, '<items>
  <Counter CounterName="processed" CounterValue="70" />
  <Counter CounterName="deferred" CounterValue="1" />
  <Counter CounterName="delivered" CounterValue="70" />
  <Counter CounterName="sent" CounterValue="70" />
  <Counter CounterName="click" CounterValue="2" />
  <Counter CounterName="open" CounterValue="22" />
</items>'), (2, '<items>
  <Counter CounterName="processed" CounterValue="170" />
  <Counter CounterName="deferred" CounterValue="11" />
  <Counter CounterName="delivered" CounterValue="170" />
  <Counter CounterName="sent" CounterValue="170" />
  <Counter CounterName="click" CounterValue="12" />
  <Counter CounterName="open" CounterValue="212" />
</items>')

SELECT
    ID,
    Processed = xc.value('(Counter[@CounterName="processed"]/@CounterValue)[1]', 'int'),
    Deferred = xc.value('(Counter[@CounterName="deferred"]/@CounterValue)[1]', 'int'),
    Delivered = xc.value('(Counter[@CounterName="delivered"]/@CounterValue)[1]', 'int'),
    [Sent] = xc.value('(Counter[@CounterName="sent"]/@CounterValue)[1]', 'int'),
    Click = xc.value('(Counter[@CounterName="click"]/@CounterValue)[1]', 'int'),
    [Open] = xc.value('(Counter[@CounterName="open"]/@CounterValue)[1]', 'int')
FROM    
    @input
CROSS APPLY
    XmlCol.nodes('/items') AS XT(XC)