drill through(v.) Drill through is a term used to describe the act of exploring or browsing items like folders, files or related components. Generally associated with drill down and drill up, which indicate vertical movements between components, drill through is an action in which you move horizontally between two items via a related link. An example to drill through is in the case of two reports that are in a master /detail relation with each other, and by clicking a master item on the master report you reach the details of the clicked item on the details report.
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