XQuery/HelloWorld

Motivation You want to run a small program that tests to see if your XQuery execution environment is working. XML Output xquery version "1.0"; let $message := 'Hello World!' return <results> <message>{$message}</message> </results> [/basics/helloWorld.xq Execute] Expected Output <results> <message>Hello World!</message> </results> Discussion The program creates a temporary variable called $message and assigns it a string value. The output is an XML element containing a message element which contains the value of the variable. Suggestions Try omitting the curly braces from inside of the result message element. What do you get? [/basics/helloWorld-1.xq Execute] What happens if you omit the results wrappers? [/basics/helloWorld-2.xq Execute] Plain Text You can get XQuery to return plain text using serialization options which define the serialization and the output media-type. For example to output the message as text, specify the serialization as text and the media-type as text/plain. xquery version "1.0"; declare option exist:serialize "method=text media-type=text/plain"; let $message := 'Hello World!' return $message [/basics/helloWorld-3.xq Execute] Expected Output Depending on your browser set-up, this will launch a viewer for text documents and display Hello World! fr:XQuery/HelloWorld