Question

我是XQuery的新手。

我有两个文件 - input.xml和config.xml，我希望能够搜索input.xml文件并检查所有config.xml soff是否在input.xml中

使用下面的示例，我想检查input.xml中是否存在soff = ABC和soff = DEF以及soff = GHI，如果在input.xml中找到所有三个，我想在配置中返回subscribergroup值.xml 没有硬编码

这是我的input.xml ......

<SOFF SOFNO="3732" NAME="ABC" ACTION="X">
      <OPNOKEY>
        <OPNO>00042</OPNO>
        <OPNO>00045</OPNO>
        <OPNO>00069</OPNO>
        <OPNO>00103</OPNO>
     </OPNOKEY>
      <PARMS QTY="3">
        <PARM NAME="#NEW" VALUE="3" ACTION="A"/>
        <PARM NAME="#NEW" VALUE="0" ACTION="R"/>
        <PARM NAME="#OLD" VALUE="3" ACTION="X"/>
      </PARMS>
      <ATTRS QTY="0"/>
    </SOFF>
    <SOFF SOFNO="3735" NAME="DEF" ACTION="R">
      <OPNOKEY>
        <OPNO>00042</OPNO>
        <OPNO>00045</OPNO>
        <OPNO>00069</OPNO>
        <OPNO>00103</OPNO>
        <OPNO>00104</OPNO>
     </OPNOKEY>
      <PARMS QTY="1">
        <PARM NAME="INSTL" VALUE="GHI" ACTION="R"/>
      </PARMS>
      <ATTRS QTY="0"/>
    </SOFF>
    <SOFF SOFNO="2959" NAME="STB3" ACTION="R">
      <OPNOKEY>
        <OPNO>00042</OPNO>
        <OPNO>00045</OPNO>
        <OPNO>00069</OPNO>
        <OPNO>00103</OPNO>
        <OPNO>00104</OPNO>
        <OPNO>00105</OPNO>
      </OPNOKEY>
       <PARMS QTY="0"/>
      <ATTRS QTY="0"/>
    </SOFF>
    <SOFF SOFNO="2958" NAME="JKL" ACTION="R">
      <OPNOKEY>
        <OPNO>00042</OPNO>
        <OPNO>00045</OPNO>
        <OPNO>00069</OPNO>
        <OPNO>00103</OPNO>
        <OPNO>00104</OPNO>
        <OPNO>00106</OPNO>
      </OPNOKEY>
      <PARMS QTY="0"/>
      <ATTRS QTY="0"/>
    </SOFF>
    <SOFF SOFNO="2957" NAME="MNO" ACTION="R">
      <OPNOKEY>
        <OPNO>00042</OPNO>
        <OPNO>00045</OPNO>
        <OPNO>00069</OPNO>
        <OPNO>00103</OPNO>
        <OPNO>00104</OPNO>
        <OPNO>00107</OPNO>
      </OPNOKEY>
      <PARMS QTY="0"/>
      <ATTRS QTY="0"/>
    </SOFF>
    <SOFF SOFNO="3349" NAME="PQR" ACTION="A">
      <OPNOKEY>
        <OPNO>00042</OPNO>
        <OPNO>00045</OPNO>
        <OPNO>00069</OPNO>
        <OPNO>00103</OPNO>
        <OPNO>00110</OPNO>
     </OPNOKEY>
      <PARMS QTY="0"/>
      <ATTRS QTY="0"/>
    </SOFF>

这是我的config.xml ...

<?xml version="1.0" encoding="UTF-8"?>
<subscriptionmappings>
<soff name="ABC">
<mandatorysoffs>
  <soff name="DEF"/>
  <soff name="GHI"/>
</mandatorysoffs>
<subscribergroup>sVOD-KidsSuite</subscribergroup>
</soff>
</subscriptionmappings>

据我所知，我似乎无法弄清楚如何检查where子句中的多个soff，我假设我需要一个for循环或类似的东西......

For $i in $config/mandatorysoffs/soff
where ($input/SOFF/@NAME = $config/soff/@name
        and $input/SOFF/@NAME = $config/mandatorysoffs/soff/@name 
        and $input/SOFF/@NAME = $config/mandatorysoffs/soff/@name ) 

        return $config/subscribergroup/text()

Answer 1

You can just check for the occurrence of each soff from the first document in the second document and then make sure that none of them are missing (i.e. false):

xquery version "1.0";

let $chk-soffs := doc("config.xml")//soff/string(@name)
let $soffs := doc("input.xml")//SOFF/string(@name)
return

let $results := for $soff in $soffs
return
$chk-soffs = $soff
return

not($results = false())

or if you have access to a processor that supports XQuery 3.0:

xquery version "3.0";

let $chk-soffs := doc("config.xml")//soff/string(@name)
let $soffs := doc("input.xml")//SOFF/string(@name)
return

let $results := $soffs ! $chk-soffs = .
return

not($results = false())

Answer 2

It appears that you want to return a <subscribergroup> value for every <soff> in your config for which the name of every child of <mandatorysoffs> exists as a SOFF/@NAME in the input. Using a universal quantifier in the where clause:

for $s in $config/soff
where 
  every $n in $s/mandatorysoffs/soff/@name
  satisfies ($n = $input/SOFF/@NAME)
return $s/subscribergroup/string()

Note that in your example GHI is a PARM/@VALUE so it still returns empty.

XQUERY：如何搜索具有多个名称值的

2 个答案: