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XML database. An XML database is a data persistence software system that allows data to be specified, and sometimes stored, in XML format. This data can be queried, transformed, exported and returned to a calling system. XML databases are a flavor of document-oriented databases which are in turn a category of NoSQL database.
As a markup language, XML labels, categorizes, and structurally organizes information. [8]: 11 XML tags represent the data structure and contain metadata. What's within the tags is data, encoded in the way the XML standard specifies. [8]: 11 An additional XML schema (XSD) defines the necessary metadata for interpreting and validating XML.
SQL/XML. SQL/XML or XML-Related Specifications is part 14 of the Structured Query Language (SQL) specification. In addition to the traditional predefined SQL data types like NUMERIC, CHAR, TIMESTAMP, ... it introduces the predefined data type XML together with constructors, several routines, functions, and XML-to-SQL data type mappings to ...
xCal: the XML-compliant representation of the iCalendar standard. XCES: an XML based standard to codify text corpus. XDI: sharing, linking, and synchronizing data using machine-readable structured documents that use an RDF vocabulary based on XRI structured identifiers. XDuce: an XML transformation language.
XQuery at Wikibooks. XQuery (XML Query) is a query and functional programming language that queries and transforms collections of structured and unstructured data, usually in the form of XML, text and with vendor-specific extensions for other data formats (JSON, binary, etc.). The language is developed by the XML Query working group of the W3C.
A plugin for Notepad++ named XML Tools is available. [4] It contains many features including manual/automatic validation using both DTDs and XSDs, XPath evaluation, auto-completion, pretty print, and text conversion in addition to being able to work on multiple files at once. Other tools are available to edit XHTML.
Free and open-source software portal. Sedna is an open-source database management system that provides native storage for XML data. The distinctive design decisions employed in Sedna are (i) schema -based clustering storage strategy for XML data and (ii) memory management based on layered address space. [1]
XPath (XML Path Language) is an expression language designed to support the query or transformation of XML documents. It was defined by the World Wide Web Consortium (W3C) in 1999, [ 1 ] and can be used to compute values (e.g., strings , numbers, or Boolean values ) from the content of an XML document.