Edit D:\rfid\database\database\doc\server.112\e10897\img_text\undo_management_112.htm
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta http-equiv="Content-Script-Type" content="text/javascript" /> <meta name="generator" content="Oracle DARB XHTML Converter (Mode = document) - Version 5.1" /> <title>Description of the illustration undo_management_112.gif</title> </head> <body> <p>This screenshot shows the Automatic Undo Management page. The page has two subpages: General and System Activity. The General subpage is displayed. This subpage has the following three sections:</p> <ul> <li> <p>Undo Retention Settings, at the upper left</p> <p>This section contains these two fields, arranged from top to bottom: a read-only Undo Retention field (currently set to 180 minutes), and a read-only Retention Guarantee field, whose value is a link. The value is currently "No".</p> </li> <li> <p>Undo Tablespace for this Instance, at the upper right</p> <p>This section contains these three read-only fields, arranged from top to bottom: a Tablespace field, whose value is a link (with current value UNDOTBS), a Size field, and an Auto-Extensible field, whose value is a link (with current value Yes).</p> </li> <li> <p>Undo Advisor: Undo Retention and Undo Tablespace Sizing Advice, beneath the other sections and taking up the rest of the page.</p> <p>This section contains these three subsections, arranged from top to bottom:</p> <ul> <li> <p>Analysis Period subsection</p> <p>This subsection contains these fields: an Analysis Time Period list, with current value "Last Seven Days"; a pair of options named Desired Undo Retention, which determine how the Undo Advisor's analysis is to be run, with the following two option names: "Automatically chosen based on longest query in analysis period" and "Specified manually to allow for longer duration queries or flashback"; and a Duration field, which pertains to the second option.</p> <p>Beneath these fields is a Run Analysis button.</p> </li> <li> <p>Analysis Results subsection</p> <p>This subsection contains two button at the upper right-hand corner. The buttons are the following, arranged from left to right: Edit Undo Tablespace and Edit Undo Retention. Below the buttons are these read-only fields, arranged from top to bottom: Selected Analysis Time Period, Minimum Required Undo Tablespace Size (MB), Recommended Undo Tablespace Size (MB), Potential Problems (whose value is "No problem found"), and Recommendations (whose value is "No recommendation").</p> </li> <li> <p>Graph subsection</p> <p>The graph is currently hidden, and a Show Graph link, with a hide/show icon, is available.</p> </li> </ul> <p>End of description.</p> </li> </ul> </body> </html>
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