sql-server - 如何从 XML 文件中提取元素？

Question

我有如下所示的简单 XML 片段。如果我只想提取“EntityFriendlyName”属性，T-SQL 会是什么样子？

<SimpleRuleValue xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
    <EntityId>0</EntityId>
    <EntityFriendlyName>ALine</EntityFriendlyName>
</SimpleRuleValue>

Answer 1

它会是这样的:

SELECT CAST(X.SomeXML AS XML).value('(SimpleRuleValue/EntityFriendlyName)[1]','nvarchar(1000)') AS EntityFriendlyName
FROM XmlSource X

编辑:
A little more information.