What are the characteristics of XML?

XML Features

• Excellent for handling data with a complex structure or atypical data.
• Data described using markup language.
• Text data description.
• Human- and computer-friendly format.
• Handles data in a tree structure having one-and only one-root element.
• Excellent for long-term data storage and data reusability.

What are the elements of XML?

XML elements must follow these naming rules:

• Element names are case-sensitive.
• Element names must start with a letter or underscore.
• Element names cannot start with the letters xml (or XML, or Xml, etc)
• Element names can contain letters, digits, hyphens, underscores, and periods.
• Element names cannot contain spaces.

What is simple element in XML?

A simple element is an XML element that can contain only text. It cannot contain any other elements or attributes. However, the “only text” restriction is quite misleading. The text can be of many different types.

What is XML and its uses?

What is XML? The Extensible Markup Language (XML) is a simple text-based format for representing structured information: documents, data, configuration, books, transactions, invoices, and much more. It was derived from an older standard format called SGML (ISO 8879), in order to be more suitable for Web use.

What are different types of elements and attributes in XML?

ID − It is used to specify the element as unique. IDREF − It is used to reference an ID that has been named for another element. IDREFS − It is used to reference all IDs of an element. ENTITY − It indicates that the attribute will represent an external entity in the document.

What is complex element in XML?

A complex element is an XML element that contains other elements and/or attributes. There are four kinds of complex elements: empty elements. elements that contain only other elements. elements that contain only text.

What is simple element and complex element in XML?

A simple element is an XML element that does not have any attributes or any sub (child) elements. A simple element can be declared with a simple datatype. What is a complex element? A complex element is an XML element that have at least one attribute, or at least one sub (child) element.