如何使用内联ID在T-SQL中查询XML

Question

我将此XML存储在记录中，如何获取特定ID的值？

<Attributes>
<CustomerAttribute ID="4">
    <CustomerAttributeValue>
        <Value>1</Value>
    </CustomerAttributeValue>
</CustomerAttribute>
<CustomerAttribute **ID="5"**>
    <CustomerAttributeValue>
        <Value>**aaaaa**</Value>
    </CustomerAttributeValue>
</CustomerAttribute>

Answer 1

假设**周围的ID="5"和“ aaaaa”表示要选择的节点，下面是一种方法。

SELECT XmlColumn.value('(/Attributes/CustomerAttribute[@ID="5"]/CustomerAttributeValue/Value)[1]', 'varchar(100)')
FROM  dbo.xml
WHERE XmlColumn.exist('/Attributes/CustomerAttribute[@ID="5"]') = 1;

假设实际的XML值如下：

<Attributes>
    <CustomerAttribute ID="4">
        <CustomerAttributeValue>
            <Value>1</Value>
        </CustomerAttributeValue>
    </CustomerAttribute>
    <CustomerAttribute ID="5">
        <CustomerAttributeValue>
            <Value>aaaaa</Value>
        </CustomerAttributeValue>
    </CustomerAttribute>
</Attributes>