Don't know about XML schema

[ScarFace 01]

Hi friend,

I just started to learn the XML. I have knowledge about the Java programming, but the XML is totally different from the Java language. I am getting troubled in understanding the 'XML schema'. I want to know that is 'XML schema' and how it is defined. If you have sound knowledge about the 'XML schema', then please try to share with me. I am waiting for your reply.

[opaper]

An instance of a XML Schema is somewhat equivalent to a type definition document (DTD). XML Schema take various differences with the DTD: it allows for example to identify areas of validity for the value of a field, then it is not possible in a DTD, however, it does not define entities, XML Schema is itself an XML document, while DTDs are documents SGML.The description of XML documents is itself defined by a schema, which tags definition of self-defined.

[MindSpace]

XML Schema in nothing but the recommendation for to description language document format XML to define the structure of an XML document. Knowing the structure of an XML document makes it possible to verify the validity of this document. A description file structure (XML Schema Definition in file XSD) Is itself an XML document. XML Schema corresponds to a high level of formalization in classification schemes. XML Schema can implement the standard Dublin Core of Metadata.

[Modifier]

Hi friend,

I suggest you to refer following example of XML , and which will depict you concept of XML schema:

<xml release="1.0" encoding="UTF-8"?>

  <person xmlns: xsi="http://..../XMLSchema-instance" xsi: noNamespaceSchemaLocation="wed.xsd">
    <name>TGB</ name>

    <first_name>Babacar</ firstname>
    <establishment>NIIT</ settlement>
    <birth_date>1987-12-21</ birth_date>
    <num_tel>9959595959</ num_tel>
  
  </ person>

[Praetor]

Hi,

The main advantages of using XML schema is that, it is useful for to describe the XML document structure. The XML schema is more powerful than 'DTD'. It means it is a another alternative option for the use of DTD. The XML schema comprises attributes and which gives more details about the XML elements. The process which is used to relate an XML document to the schema changes as per the XML schema language.

[Katty]

I have one example of XML schema, Please study below example carefully:

<?xml version="1.0"?>

<xs:schema xmlns:xs="http://...../XMLSchema">

<xs:element name="note">
<xs:complexType>
<xs:sequence>
<xs:element name="V" type="xs:string"/>
<xs:element name="yj" type="xs:string"/>
<xs:element name="heading" type="xs:string"/>

<xs:element name="body" type="xs:string"/>
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:schema>