小编Zep*_*hyr的帖子

最近，我尝试通过将XML数据转换为特定模式来搜索特定模式，varchar(max)尽管我知道这不是最佳实践，并且发现它没有按预期工作：-

设置

declare @container table(
    [Response] xml not null
);

declare @xml xml =
'<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://abc.com/xsd" xmlns:ns="http://abc.com" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
   <soapenv:Header>
     <ns:MessageHeader>
       <xsd:ID>ABC</xsd:ID>
       <xsd:Date>2018-12-31T23:59:59</xsd:Date>
     </ns:MessageHeader>
   </soapenv:Header>
   <soapenv:Body>
     <ns:MessageResponse>
       <ns:return>
         <xsd:ResponseList xsi:nil="true" />
       </ns:return>
     </ns:MessageResponse>
   </soapenv:Body>
 </soapenv:Envelope>';

insert into @container values (@xml);

此查询有效

select *
  from @container
 where cast(Response as varchar(max))
  like '%<xsd:ResponseList xsi:nil="true"%';

注意通配符在 XML 节点之前的3 个字符（即）结束' />'

select *
  from @container
 where cast(Response as varchar(max))
  like '%<xsd:ResponseList xsi:nil="true" %' -- …