TSQL 如果其子元素包含给定值，则删除 XML 节点 [英] TSQL Delete XML node if its child element contains a given value

问题描述

XML 存储可以在 下有零个或多个

节点需要查询以删除 的任何

节点.= '2 教堂巷'

XML Storage can have zero or more <Address> nodes under <Addresses> Need a query to delete any <Address> nodes whose <AddressLine> = '2 Church Lane'

开始 XML:

declare @t table (storage xml);
insert into @t (storage)
select '<Person>
  <Fullname />
  <Surname>Smith</Surname>
  <FirstName>John</FirstName>
  <Addresses>
      <Address>
        <AddressLine>1 Church Lane</AddressLine>
      </Address>
      <Address>
        <AddressLine>2 Church Lane</AddressLine>
      </Address>
      <Address>
        <AddressLine>3 Church Lane</AddressLine>
      </Address>
  </Addresses>
</Person>';

结果 XML:

<Person>
  <Fullname />
  <Surname>Smith</Surname>
  <FirstName>John</FirstName>
  <Addresses>
      <Address>
        <AddressLine>1 Church Lane</AddressLine>
      </Address>
      <Address>
        <AddressLine>3 Church Lane</AddressLine>
      </Address>
  </Addresses>
</Person>

推荐答案

找到了:

update @t
SET storage.modify('
    delete (/Person/Addresses/Address[AddressLine = "2 Church Lane"])
')

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