The Database utilization area provides a graphical representation of the minimum, average and maximum database utilization over the last 7 days as well as the 90% database utilization threshold represented by a red dotted curve.
To change the period of time, use the filters available in the upper-right corner of the graph.
For better readability, you can also highlight one or several curves in the graph. To do this, select them from the Aggregation Type legend.
For more details on a specific period of time, hover over the graph to display information on the database usage that was made at this time.