Changes

In BaseX, a “database nodes” is usually an XML node that is stored in a persistent databasetwo internal representations exist for nodes.

However, it can also be * XML fragments are generated by XQuery node constructors.* Database nodes are:** stored in a node persistent database on disk;** nodes of a maindocument that has been generated temporarily with {{Code|fn:doc}}, {{Code|fn:parse-memory database, or the xml}} and other functions;** result of a main-memory update operation.  Some operations are restricted to database nodes, but you can convert XML fragments to database nodes by applying an empty [[XQuery_Update#update|update]] or [[XQuery_Update#transform|transform]] operation to a node. Two examples: