Data drill down and drill through make reporting powerful and useful.
Drill down and drill through analysis are two extremely powerful features in business intelligence. They both give the user the ability to see data and information in more detail–although they do so in different fashions.
Drill down is a capability that takes the user from a more general view of the data to a more specific one at the click of a mouse. For example, a drill down report that shows sales revenue by state can allow the user to select a state, click on it and see sales revenue by county or city within that state. It is called “drill down” because it is a feature that allows the user to go deeper into more specific layers of the data or information being analyzed.
Further levels of drill down can be set up within the report–practically as many as supported by the data. In our example, the drill-down can go from country to state to city to zip code to specific location of stores or individual sales reps. Typically, the look and feel of each level of the report is similar–what changes is the granularity of the data.
Instead of taking the user to a more granular level of the data, drill through takes him to a report that is relevant to the data being analyzed, also at the click of a mouse. For example, a tabular report that shows sales revenue by state can allow the user to click on it and reveal an analysis grid of the same data, or a heat map representing the data in visual form. It is called “drill through” because it is a feature that allows the user to pass from one report to another while still analyzing the same set of data.
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What Are The Benefits?
Gain instant knowledge of different depths of the data
A drill down report gives the user a deeper insight of the data by letting him see what makes up the figures he’s analyzing. For example, in mere seconds, data drill-down answers questions such as: of my national sales figure, which states are performing better? Which states are underperforming? And within each state, which territories are driving revenue?
Keep reporting load light and enhance reporting performance
By only presenting one layer of data at a time, features like drill down lighten the load on the server at query time and greatly enhance reporting performance–while offering great value to the end-user.
See data from different
points of view
Drill through reports allows users to analyze the same data through different formats, analyze it with different features, and even display it through different visualization methods. This greatly enhances the users’ understanding of the data and of the reasons behind the figures.
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