Press the buttons in descending order in the top right panel.

You can represent the same data as either relational tables or XML documents. When it comes time to retrieve information you want to see that performance is comparable for both methods. The following test retrieves the same information through an relational SELECT statement or through an XQuery. Each statement is run 1000 times. You can compare and graph the results.

In this case we are searching only for the records for customer 'LIL'.

The statement performance should be similar in the graph in the bottom right panel.