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Asked by: Hassiba Tiews
technology and computing web design and htmlWhat is internal DTD in XML?
A DTD is referred to as an internal DTD if elements are declared within the XML files. To reference it as internal DTD, standalone attribute in XML declaration must be set to yes. This means the declaration works independent of external source.
In this way, what is DTD in XML?
A document type definition (DTD) is a set of markup declarations that define a document type for a SGML-family markup language (GML, SGML, XML, HTML). It defines the document structure with a list of validated elements and attributes. A DTD can be declared inline inside an XML document, or as an external reference.
In this way, what is difference between internal and external DTD?
The only difference between internal and external is in the way it's declared with DOCTYPE. Hope this will help you!!! Internal DTD : You can write rules inside XML document using declaration. External DTD : You can write rules in a separate file (with .
The DTD is only required if you use named entities outside the 5 that are built into XML ( & et al). Some XML parsers will ignore it completely. Some will download it and use it.