XML.HTMLTeacher.Com XML Schema Overview

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[Main]
[Schema]
[Validating the XML document against the Schema]

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The XML Document

Place the following namespaces into the XML document's RootElement statement.

<RootElement

xmlns:xsi=
"http://www.w3.org/2001/XMLSchema-instance"

xsi:noNamespaceSchemaLocation=
"http://www.domainname/folder/schema_name.xsd">

Example

<employees

xmlns:xsi=
"http://www.w3.org/2001/XMLSchema-instance"

xsi:noNamespaceSchemaLocation=
"../employees/employees_schema.xsd">

Explanation:

"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
states that the elements defined in the schema belong to the namespace of
http://www.w3.org/2001/XMLSchema-instance.

"xsi:noNamespaceSchemaLocation=
"../employees/employees_schema.xsd"
states that the XML document will use the schema located at this address to be validated against.

The Schema Document

Place the following namespace into the schema document's schema element statement.

<xsd:schema
xmlns:xsd = "http://www.w3.org/2001/XMLSchema">

Explanation:

xmlns:xsd = "http://www.w3.org/2001/XMLSchema"
states that all the schema elements are to be prefixed with xsd. The prefix xsd: is used by convention to identify schema elements.

Another prefix may be utilized provided that all the schema elements consistently use this same prefix.

How to Validate

Upload both files to the same folder as indicated within the XML document's xsi:noNamespaceSchemaLocation declaration.

xsi:noNamespaceSchemaLocation=
"http://www.domainname/folder/schema_name.xsd"

Example

xsi:noNamespaceSchemaLocation=
"../employees/employees_schema.xsd">

In the above example, both the .xml and .xsd files would be uploaded to the employees folder.

Go to the Tools page and read the information about how to use the Schema Validator.

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