Write down the following English language queries in XQuery, and show the result of evaluating the XQuery query on the given XML document. (a) For every distinct location l for which no trek with rating less than 85 exists, return an element node with label location that has the following content: i) a child element labelled location name with the name of the location as text content, and ii) for each trek in that location, an element child labelled trek with the name of the trek as text content.
Question
Write down the following English language queries in XQuery, and show the result of evaluating the XQuery query on the given XML document. (a) For every distinct location l for which no trek with rating less than 85 exists, return an element node with label location that has the following content: i) a child element labelled location name with the name of the location as text content, and ii) for each trek in that location, an element child labelled trek with the name of the trek as text content.
Solution
I'm sorry, but you didn't provide the XML document on which the XQuery should be evaluated. However, I can provide a general XQuery structure based on your requirements.
Here is a general XQuery that might fit your needs:
let $doc := doc("your-document.xml") (: replace with your actual document :)
for $location in distinct-values($doc//location)
where not(exists($doc//trek[rating < 85 and location = $location]))
return
<location>
<location_name>{ $location }</location_name>
{
for $trek in $doc//trek[location = $location]
return <trek>{ data($trek/name) }</trek>
}
</location>
This XQuery does the following:
- It iterates over all distinct location values in the document.
- For each location, it checks if there exists a trek with a rating less than 85. If not, it proceeds to the next step.
- It returns a new
locationelement with alocation_namechild containing the location name. - For each trek in the current location, it adds a
trekchild to thelocationelement with the trek name as its content.
Please replace "your-document.xml" with the path to your actual XML document. Also, you might need to adjust the paths to the location, trek, rating, and name elements depending on the structure of your XML document.
Similar Questions
Write down the following English language queries in XQuery, and show the result of evaluating the XQuery query on the given XML document. For every distinct difficulty, return an element node difficulty with i) an attribute child called value that lists the difficulty, ii) an element child trek for every trek with that difficulty, and iii) an element child avg length that contains the average length over all of these treks.
<?xml version = "1.0” encoding = "UTF-8"? > <doc> <a> <b> <a/> <a/> </b> <b> <a/> </b> <b> <a/> <a> <b/> <b/> </a > <a/> </b> </a> </doc> ) Convert each of the following queries into the corresponding XPath expression, and evaluate it on the tree by listing the pre-identifier of the nodes returned. i. For every element child m of some element node, and for every node n that is the third among all b-labelled element children of m, return the node that is the second among all element children for some descendant-or-self node of n.
Consider the following XML document. <?xml v e r si o n = ‘ ‘1.0”? > <walks> <t r e k name= ‘ ‘ Keple r”> <l o c a ti o n >Fi o rdl and </l o c a ti o n > <d i f f i c u l t y >moderate</ d i f f i c u l t y > <len g th >60km</len g th> <r a ti n g >88</ r a ti n g > </t re k> <t r e k name= ‘ ‘ Routeburn”> <l o c a ti o n >Fi o rdl and </l o c a ti o n > <d i f f i c u l t y >moderate</ d i f f i c u l t y > <len g th >32km</len g th> <r a ti n g >98</ r a ti n g > </t re k> <t r e k name= ‘ ‘ T on g a ri r o C r o s si n g”> <l o c a ti o n >Tongariro </l o c a ti o n > <d i f f i c u l t y >hard</ d i f f i c u l t y > <len g th >19.4km</len g th> <r a ti n g >96</ r a ti n g > </t re k> <walks>For every distinct location l for which no trek with rating less than 85 exists, return an element node with label location that has the following content: i) a child element labelled location name with the name of the location as text content, and ii) for each trek in that location, an element child labelled trek with the name of the trek as text content.
Write the following English language query in regular property graph logic:Return the trek nodes that have 2 or 3 sections.Such as:（答案像以下这种格式写出来）result(y) ← :flight(x, y), x.name = “Papeete”result(y) ← :flight(x, s1), :flight(s1, y), x.name = “Papeete”result(y) ← :flight(x, s1), :flight(s1, s2), :flight(s2, y), x.name = “Papeete”
Consider the following XML document and answer the questions below.1234567891011121314<WebServiceResponse> <status>OK</status> <result> <type>Building</type> <name>Dreese Labs</name> <location> <lat>40.002382</lat> <lng>-83.015958</lng> </location> </result> <result> <message>CSE Department</message> </result> </WebServiceResponse>What are the tags in this XML document?What are the text strings in this XML document?What are the attributes for each tag in this XML document?
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.