[英]XQuery Nested For Loop
我有一个示例xml文件,例如:
<user_manual document-type="IU" ts-cover="Language Part alt" ts-lang="-" ts-multi="Language Part, Chapter" ts-overview="-" metadata1="9211" brand="Bosch" material-number="dummy_9000727237" vib="RW404960" language-codes="de, en" production-date="2012-12-03" layout-type="-" id="SL9761901">
<embed-language_part id="SL14686180">
<language_part id="ecls_bio_becls_a3_a14686169.SL9761756.7" role="-" lang="de">
<embed-user_manual_part id="ecls_bio_becls_a3_a14686169.SL14686446.10">
<?ecls-start-embedded-resource resource="ecls_bio_becls_a3_a17144756"?>
<user_manual_part id="ecls_bio_becls_a3_a17144756.SL9765760.11" role="-" document-type="IU">
<embed-chapter id="ecls_bio_becls_a3_a17144756.SL9762101.13">
<?ecls-start-embedded-resource resource="ecls_bio_becls_a3_a30660983"?>
<chapter id="ecls_bio_becls_a3_a30660983.SL2300626.14" role="-" toctitle="yes" footrowtitle="no" type="security">
<embed-title_module id="ecls_bio_becls_a3_a30660983.SL2361816.15">
<?ecls-start-embedded-resource resource="ecls_bio_becls_a3_a611713"?>
<title_module id="ecls_bio_becls_a3_a611713.SL873735.16" role="-">
<title id="ecls_bio_becls_a3_a611713.SL873736.17">Sicherheits- und Warnhinweise</title>
</title_module>
<?ecls-end-embedded-resource resource="ecls_bio_becls_a3_a611713"?>
</embed-title_module>
<embed-section id="ecls_bio_becls_a3_a30660983.SL10400094.18">
<?ecls-start-embedded-resource resource="ecls_bio_becls_a3_a11752692"?>
<section id="ecls_bio_becls_a3_a11752692.SL1742298.19" footrowtitle="no" role="-" toctitle="yes">
<?Pub Caret1?>
<embed-title_module id="ecls_bio_becls_a3_a11752692.SL1742291.20">
<?ecls-start-embedded-resource resource="ecls_bio_becls_a3_a16181733"?>
<title_module id="ecls_bio_becls_a3_a16181733.SL984238.21" role="-">
<title id="ecls_bio_becls_a3_a16181733.SL984239.22">Bevor Sie das Gerat in Betrieb nehmen</title>
<para id="ecls_bio_becls_a3_a16181733.SL984240.23">Lesen Sie Gebrauchs- und Montageanleitung aufmerksam durch! Sie enthalten wichtige Informationen �ber Aufstellen, Gebrauch und Wartung des Ger�tes.</para>
<para id="ecls_bio_becls_a3_a16181733.SL984241.24">Der Hersteller haftet nicht, wenn Sie die Hinweise und Warnungen der Gebrauchsanleitung missachten. Bewahren Sie alle Unterlagen f�r sp�teren Gebrauch oder f�r Nachbesitzer auf.</para>
</title_module>
<?ecls-end-embedded-resource resource="ecls_bio_becls_a3_a16181733"?>
</embed-title_module>
</section>
<?Pub *0000000275?>
<?ecls-end-embedded-resource resource="ecls_bio_becls_a3_a11752692"?>
</embed-section>
</chapter>
</embed-chapter>
</user_manual_part>
</embed-user_manual_part>
</language_part>
</embed-language_part>
</user_manual>
我想使用XQuery语言,但我真的是这种查询语言的新手。
我需要的基础结构是:我想获得本章及其节的标题,例如:
本章类似于此xml文件:
<chapter id="ecls_bio_becls_a3_a30660983.SL2300626.14" role="-" toctitle="yes" footrowtitle="no" type="security">
<embed-title_module id="ecls_bio_becls_a3_a30660983.SL2361816.15">
<?ecls-start-embedded-resource resource="ecls_bio_becls_a3_a611713"?>
<title_module id="ecls_bio_becls_a3_a611713.SL873735.16" role="-">
<title id="ecls_bio_becls_a3_a611713.SL873736.17">Sicherheits- und Warnhinweise</title>
...
在该示例中,Sicherheitsind in Warnhinweise是Chapter元素的标题。 各章可以包含许多部分,在我们的示例中,该部分的标题为:
<section id="ecls_bio_becls_a3_a11752692.SL1742298.19" footrowtitle="no" role="-" toctitle="yes">
<?Pub Caret1?>
<embed-title_module id="ecls_bio_becls_a3_a11752692.SL1742291.20">
<?ecls-start-embedded-resource resource="ecls_bio_becls_a3_a16181733"?>
<title_module id="ecls_bio_becls_a3_a16181733.SL984238.21" role="-">
<title id="ecls_bio_becls_a3_a16181733.SL984239.22">Bevor Sie das Gerat in Betrieb nehmen</title>
...
Betrieb nehmen的Bevor Sie das Gerat。
预期结构:
<chapter> title:"Chapter's title"
<section>title:"First section's title"</section>
<section>title:"Second section's title"</section>
</chapter>
对于该示例章节,只有一小节,但是我只是配置了这一小节以获取文件的解决方案,我猜这是最易读的配置...
我在xquery查询下面尝试过:
<chapter
let $doc := doc("Test.xml")
for $chapter in $doc/user_manual/embed-language_part/language_part/embed-user_manual_part/user_manual_part/embed-chapter/chapter
let $chapter_title := $chapter/embed-title_module/title_module/title
for $section in $chapter/embed-section/section
return <chapter>title:{data($chapter_title)} <section> title:{data($section/embed-title_module/title_module/title)}</section></chapter>
有两个嵌套循环,但是这段代码使我的结构像:
<chapter>title:"Chapter's title"<section>"First section's title"</section></chapter>
<chapter>title:"Chapter's title"<section>"Second section's title"</section></chapter>
问题在循环,但是当我尝试编辑这样的代码时:
let $doc := doc("assemble.xml")
for $chapter in $doc/user_manual/embed-language_part/language_part/embed-user_manual_part/user_manual_part/embed-chapter/chapter
let $chapter_title := $chapter/embed-title_module/title_module/title
<chapter> title:{data($chapter_title)} {
for $section in $chapter/embed-section/section
return <section> title:{data($section/embed-title_module/title_module/title)}</section>
}</chapter>
我只想将标记放在第一个循环标记中,然后再添加节元素进行查询。 但是上面的命令不符合我的期望。
因此,我需要您的建议以正确获取这些结构。 先感谢您。 希望我能清楚地告诉大家情况。 假定为“ assemble.xml”的文件名。
<chapters>{
let $doc := doc("assemble.xml")
for $chapter in $doc/user_manual/embed-language_part/language_part/embed-user_manual_part/user_manual_part/embed-chapter/chapter
return
<chapter>
title:{data($chapter/embed-title_module/title_module/title)}
{
for $section in $chapter/embed-section/section
return <section>title: {data($section/embed-title_module/title_module/title)}</section>
}
</chapter>
}</chapters>
我在互联网上搜索,发现了如何进行内循环操作。 以下代码非常适合我的期望。
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