State the advantages of xml schemas over dtd, DOT NET Programming

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State the advantages of XML schemas over DTD.

Microsoft developed a language called as the XML Schema Definition (XSD) to explain the schema to an XML document. The following are the benefits of XML schemas over DTDs:

XSD keeps much better control over types of data than the DTD.

 DTD does not allow creating customized data types whereas the XSD provides full support to make customized data types.

XSD allows you to state restrictions on data. It means that you can explain the type of data that should be stored in an element, for example numbers or alphabets.

The XSD is quite easy to learn and to understand because its syntax is similar as that of the XML document.

 


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