* <code>query</code>:<br/>Evaluates an XPath/XQuery expression.<br/>If a database or database path is specified in the URL, it is used as query context.
* <code>run</code>:<br/>Runs a query file located on the server.<br/>The query directory is defined by the <code>[[Options(Snapshot)#HTTPPATH|HTTPPATH]]</code> option.
* <code>command</code>:<br/>Executes a [[Commands|database command]].