I recently posted some SQL statements on updating PageHeadText in the Tabs table for DotNetNuke and Google Analytics. I recently updated the SQL statement to exclude any deleted tabs.

UPDATE Tabs SET PageHeadText = '<script src="http://www.google-analytics.com/urchin.js" type="text/javascript">
           </script>
           <script type="text/javascript">
                _uacct = "UA-xxxxxx-x";
                urchinTracker();
           </script>'
 WHERE (PortalID = 0) AND (ParentID <> '38') AND (IsDeleted = 0)

This will automatically change all pages for the portal to include the Google Urchin JavaScript into the page head. This will also filter out certain pages. For example 38, will filter out any Admin pages in the database for our setup. IsDeleted = 0 makes sure the page is not deleted. This is alot quicker, especially for portals that have thousands of pages, than adding a module to each page or updating each page individually in the Page Settings > Advanced Settings > Page Header Tags.