Admin: 1 версия

2010-05-26T08:25:54Z

1 версия

в 18:22, 25 мая 2010

2010-05-25T18:22:29Z

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==Compare element value==



<source lang="xml">
File: Data.xml
<prices>
<priceList>
<prod>
<price>29.99</price>
</prod>
<prod>
<price>69.99</price>
</prod>
</priceList>
</prices>

File: Query.xquery
if (doc("Data.xml")/prices/priceList/prod[price < 30])
then <bin>{
doc("Data.xml")/*/priceList/prod[price < 30]
}</bin>
else ()

Output:
<?xml version="1.0" encoding="UTF-8"?>
<bin>
<prod>
<price>29.99</price>
</prod>
</bin>
</source>

==Embedded direct element constructors==



<source lang="xml">

File: Data.xml

<order>
<car model="A">
<id>0001</id>
<name language="en">name 1</name>
</car>
<car model="B">
<id>0002</id>
<name language="en">name 2</name>
</car>
<car model="B">
<id>0003</id>
<name language="en">name 3</name>
</car>
</order>

File: Query.xquery
<html>
<h1>car order</h1>
<p>A <i>huge</i> list of {count(doc("Data.xml")//car)} cars.</p>
</html>

Output:
<?xml version="1.0" encoding="UTF-8"?>
<html>
<h1>car order</h1>
<p>A <i>huge</i> list of 3 cars.</p>
</html>
</source>

==Enclosed expressions that evaluate to attributes==



<source lang="xml">

File: Data.xml

<order>
<car model="A">
<id>0001</id>
<name language="en">name 1</name>
</car>
<car model="B">
<id>0002</id>
<name language="en">name 2</name>
</car>
<car model="B">
<id>0003</id>
<name language="en">name 3</name>
</car>
</order>
File: Query.xquery
for $prod in doc("Data.xml")/order/car
return <li>{$prod/@model}id: {$prod/id}</li>
Output:
<?xml version="1.0" encoding="UTF-8"?>
<li model="A">id: <id>0001</id>
</li>
<li model="B">id: <id>0002</id>
</li>
<li model="B">id: <id>0003</id>
</li>
</source>

==Enclosed expressions that evaluate to elements==



<source lang="xml">

File: Data.xml

<order>
<car model="A">
<id>0001</id>
<name language="en">name 1</name>
</car>
<car model="B">
<id>0002</id>
<name language="en">name 2</name>
</car>
<car model="B">
<id>0003</id>
<name language="en">name 3</name>
</car>
</order>

File: Query.xquery
for $prod in doc("Data.xml")/order/car
return <li>id: {$prod/id}</li>

Output:
<?xml version="1.0" encoding="UTF-8"?>
<li>id: <id>0001</id>
</li>
<li>id: <id>0002</id>
</li>
<li>id: <id>0003</id>
</li>
</source>

==Enclosed expressions with multiple subexpressions==



<source lang="xml">

File: Data.xml

<order>
<car model="A">
<id>0001</id>
<name language="en">name 1</name>
</car>
<car model="B">
<id>0002</id>
<name language="en">name 2</name>
</car>
<car model="B">
<id>0003</id>
<name language="en">name 3</name>
</car>
</order>

File: Query.xquery
for $prod in doc("Data.xml")/order/car
return <li>{$prod/@model,"string",5+3,$prod/id}</li>
Output:
<?xml version="1.0" encoding="UTF-8"?>
<li model="A">string 8<id>0001</id>
</li>
<li model="B">string 8<id>0002</id>
</li>
<li model="B">string 8<id>0003</id>
</li>
</source>

==Including complex elements from the input document==



<source lang="xml">

File: Data.xml

<order>
<car model="A">
<id>0001</id>
<name language="en">name 1</name>
</car>
<car model="B">
<id>0002</id>
<name language="en">name 2</name>
</car>
<car model="B">
<id>0003</id>
<name language="en">name 3</name>
</car>
</order>

File: Query.xquery
for $prod in doc("Data.xml")/order/car[@model = "A"]
return $prod

Output:
<?xml version="1.0" encoding="UTF-8"?>
<car model="A">
<id>0001</id>
<name language="en">name 1</name>
</car>
</source>

==Including elements from the input document==



<source lang="xml">

File: Data.xml

<order>
<car model="A">
<name language="en">name 1</name>
</car>
<car model="B">
<name language="en">name 2</name>
</car>
<car model="B">
<name language="en">name 3</name>
</car>
</order>
File: Query.xquery
for $prod in doc("Data.xml")/order/car[@model = "A"]
return $prod/name

Output:
<?xml version="1.0" encoding="UTF-8"?>
<name language="en">name 1</name>
</source>

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Admin: 1 версия

в 18:22, 25 мая 2010