Description of the illustration exp_undo_advisor.gif

This is an image of the Undo Advisor, which is a graph. The x-axis is labeled "Undo Retention Time," and the time is shown in seconds. The origin is labeled 0, and 2,000 and 4,000 are also labeled. The y-axis is labeled "Undo Tablespace Size". The original is labeled 0, and there are labels for 2 MB, 4 MB, 6 MB, and so on up to 20 MB. At the top right of the graph is a blue circle labeled Target. The graph has an orange line plotted on it, and a blue tick-mark, or point represents the target undo retention time that is currently set for the database. The orange line has other tick-marks on it, which you can click.