This figure is a tree depicting the execution plan for the statement in the preceding text.

Step 1, Concatenation, is a clear box that branches to Step 2, Table Access (by rowid) employees, and Step 4, Table Access (by rowid) employees, which are both shaded boxes.

Step 2 branches to Step 3, Index (range scan) emp_deparment_ix, a shaded box, and Step 4 branches to Step 5, Index (range scan) emp_job_ix, a shaded box.