Exam 9: Working With Xml and Databases

When a query is based on elements in which there is no predefined set of unique values, you can construct a list of unique values using the XPath 2.0 _____ function.

You can add comments to any part of the XQuery file using the statement _____.

When you import a library module, the module _____ in the import statement must match the one in the library module file.

-In a FLWOR query structure, the _____ clause iterates through a sequence of values, calculating an expression for each item in the sequence.

To declare an external variable, add the keyword _____ to the variable declaration.

As with XSLT, many calculations and operations in XQuery can be performed using _____, in which the XQuery function calls itself repeatedly until a stopping condition is met.

Agnes has been using XQuery to design queries using path expressions. Her next project will involve multiple source documents and require more complicated criteria. She has heard that a FLWOR structure could be effective for such cases, and comes to you for assistance in developing a FLWOR structure query. -Agnes has heard that one of the clauses in a FLWOR structure is used to iterate through a sequence of nodes or atomic values. You tell her that she is describing the _____ clause.

In the for clause of a FLWOR query, the _____ attribute is optional.

The _____ statement retrieves all of the variables and functions defined in a library module.

_____ variables are variables whose values are determined when the query is run by the processor.

XQuery provides several tools to create formatted output.