The XML elements are the basic building block of the XML document . It is used as a container to store text elements, attributes, media objects etc. Every XML documents contain at least one element whose scopes are delimited by start and end tags or in case of empty elements it is delimited by an empty tag.
What are the different types of XML elements?
- xs:string.
- xs:decimal.
- xs:integer.
- xs:boolean.
- xs:date.
- xs:time.
What are the XML elements?
- xs:string.
- xs:decimal.
- xs:integer.
- xs:boolean.
- xs:date.
- xs:time.
What are XML attributes and elements?
The XML attribute is a part of an XML element . The addition of attribute in XML element gives more precise properties of the element i.e, it enhances the properties of the XML element. In the above syntax element_name is the name of an element which can be any name.
What are contents of an XML element can contain?
An XML Element is the basic construct within an XML Document. An XML Element may contain text, Attributes, other Elements as well as Entity References, CDATA and Processing Instructions , this allows complex hierarchical data to be described.
Which are the main features of XML?
- 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.
What is XML syntax?
All XML elements must have a closing tag. ... XML tags are case sensitive. All XML elements must be properly nested . All XML documents must have a root element.
What is XML used for?
General applications: XML provides a standard method to access information , making it easier for applications and devices of all kinds to use, store, transmit, and display data.
Which is a correct XML element?
XML Naming Rules
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 an XML namespace?
An XML namespace is a collection of names that can be used as element or attribute names in an XML document . The namespace qualifies element names uniquely on the Web in order to avoid conflicts between elements with the same name.
It allows to create new tags ( user defined tags ). The first element of XML document is called root element. The simple XML document contain opening tag and closing tag. The XML tags are case sensitive i.e. <root> and <Root> both tags are different. The XML tags are used to define the scope of elements in XML document.
What is XML tag with example?
But unlike HTML, XML tags identify the data rather than specify how to display it. Whereas an HTML tag says something like, “Display this data in bold font” ( <b>... </b> ), an XML tag acts like a field name in your program. It puts a label on a piece of data that identifies it (for example, <message> ...
What are the elements and attributes in XML give example?
XML elements can be defined as building blocks of an XML. Elements can behave as containers to hold text, elements, attributes, media objects or all of these. Each XML document contains one or more elements, the scope of which are either delimited by start and end tags, or for empty elements, by an empty-element tag.
What is the basic structure of an XML document?
An XML document consists of three parts, in the order given: An XML declaration (which is technically optional, but recommended in most normal cases) A document type declaration that refers to a DTD (which is optional, but required if you want validation) A body or document instance (which is required)
What is XML prolog?
XML Prolog is the component added in the beginning of an XML document . Otherwise, we can say that whatever it appears before the document’s root element can be considered as Prolog. XML Prolog includes XML declaration, DOCTYPE and comments, processing instructions too.
Is XML ordered?
Figure 10.1: An XML document. An XML document is an ordered , labeled tree. Each node of the tree is an XML element and is written with an opening and closing tag . ... The standard for accessing and processing XML documents is the XML Document Object Model or DOM .
