Question 1

Describe the use of joins in in XQuery, and differentiate between an inner join and outer join. Which is the default join type in XQuery?

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Question 2

The _____ module is the XQuery file that contains the query to be executed and any variables or functions declared in the query prolog.

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Question 3

Match between columns
                        Premises: Used to terminate declarations in an XQuery prolog
Contains the query to be executed
Standard method for creating structured documentation
Used to set up fundamental properties of a query
Used to start a variable name
Saxon parameter used to create easily readable result text
Last clause in a FLWOR structure
Declaration used to create a variable in an XQuery prolog
First clause in a FLWOR structure
Keyword used to create a parameter whose value is assigned by the XQuery processor

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Question 4

The _____ clause was added to the FLWOR structure in XQuery 3.0 to provide a way of counting each iteration in the query result.

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Question 5

In April 2014, the W3C gave the _____ specifications Recommendation status, indicating that it was a mature and stable language ready to be deployed in working environments.

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Question 6

XQuery 3.0 provides a robust debugging technique using the try… _____ structure.

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Question 7

A well-designed query is efficient, runs quickly, and is less prone to error. You should design your queries to be clear and concise, easy to maintain, and easy for others to interpret and edit if necessary. Describe at least three of the main principles of effective query design outlined in the tutorial.

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Question 8

XQuery 3.0 adds the _____ clause to the already established FLWOR structure.

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Question 9

As with XSLT, many calculations and operations in XQuery can be performed using recursion, in which the XQuery function calls itself repeatedly until a stopping condition is met. Provide the general structure of a recursive function in XQuery, and explain the role of each part of the structure.

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Question 10

A(n) _____ contains the declarations for namespaces, variables, and user-defined functions-which can be imported into other query documents.

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Question 11

A(n) _____ is a database operation used to combine two or more database tables based on fields or columns that are common to the tables.

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Quiz 9: Working With Xml and Databases