As you learned in this chapter, drilling is another useful tool when it comes to organizing data for more effective analysis and discovering hidden details. As you found out, Oracle Discoverer provides a set of useful drilling tools, making the task of getting answers to your business questions a breeze.
Walking through the chapter examples, you learned how to navigate through a drill hierarchy up and down, getting to the level of detail you need. You also saw how to drill to a related item, to see the detailed information for a certain item, and how to do drilling from a worksheet graph.
