Welcome to FLWOR POWER, my playground for all things XQUERY and related technologies.

I am slowing working on a few example applications which I hope to release in the next decade. If that's too long for you wait then check out the following XQuery powered apps. MarkMail is a very impressive mailing list archive searching service indexing millions of emails. Atomic Wiki is a wiki style app based on Atom Publishing Protocol and syndication format.

If you're hands on and would like to get started with XQuery you can download the following.

  • eXist-db an Open Source XML database.
  • Mark Logic provide free community and trial licences for MarkLogic Server. MarkLogic Server comes bundled with an Application Builder to help kickstart development.
  • Zorba is an XQuery processor which you can run from the command line. Zorba also has many language bindings.
  • Saxon is another XQuery processor which you often find embeded in applications such as Oxygen, a great XML editor.

You can find many XQuery examples on Wikibooks and FunctX XQuery Function Library.

  • XQuery is a language designed to query collections of XML data much in the same way SQL is used to query relational databases. XPath is a subset of XQuery.
  • FLWOR (pronounced 'flower') is the primary construct in XQuery and derives from the keywords For, Let, While Order by, Return.
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