drill through(A feature that displays all rows from the fact table that combine to form the value for that cell. The rows resulting from drill through are displayed in a new worksheet so that you can view detailed data for a particular cell)
exploration The search for economic deposits of minerals, ore, gas, oil, or coal by geological surveys, geophysical prospecting, boreholes and trial pits, or surface or underground headings, drifts, or tunnels; exploration