DELETE FROM `tiki_preferences` WHERE `name` = 'feed_articles_desc' AND (`value` = '' OR `value` IS NULL);
DELETE FROM `tiki_preferences` WHERE `name` = 'feed_articles_title' AND (`value` = '' OR `value` IS NULL);
DELETE FROM `tiki_preferences` WHERE `name` = 'feed_blog_desc' AND (`value` = '' OR `value` IS NULL);
DELETE FROM `tiki_preferences` WHERE `name` = 'feed_blog_title' AND (`value` = '' OR `value` IS NULL);
DELETE FROM `tiki_preferences` WHERE `name` = 'feed_blogs_desc' AND (`value` = '' OR `value` IS NULL);
DELETE FROM `tiki_preferences` WHERE `name` = 'feed_blogs_title' AND (`value` = '' OR `value` IS NULL);
DELETE FROM `tiki_preferences` WHERE `name` = 'feed_calendar_desc' AND (`value` = '' OR `value` IS NULL);
DELETE FROM `tiki_preferences` WHERE `name` = 'feed_calendar_title' AND (`value` = '' OR `value` IS NULL);
DELETE FROM `tiki_preferences` WHERE `name` = 'feed_directories_desc' AND (`value` = '' OR `value` IS NULL);
DELETE FROM `tiki_preferences` WHERE `name` = 'feed_directories_title' AND (`value` = '' OR `value` IS NULL);
DELETE FROM `tiki_preferences` WHERE `name` = 'feed_file_galleries_desc' AND (`value` = '' OR `value` IS NULL);
DELETE FROM `tiki_preferences` WHERE `name` = 'feed_file_galleries_title' AND (`value` = '' OR `value` IS NULL);
DELETE FROM `tiki_preferences` WHERE `name` = 'feed_file_gallery_desc' AND (`value` = '' OR `value` IS NULL);
DELETE FROM `tiki_preferences` WHERE `name` = 'feed_file_gallery_title' AND (`value` = '' OR `value` IS NULL);
DELETE FROM `tiki_preferences` WHERE `name` = 'feed_forum_desc' AND (`value` = '' OR `value` IS NULL);
DELETE FROM `tiki_preferences` WHERE `name` = 'feed_forum_title' AND (`value` = '' OR `value` IS NULL);
DELETE FROM `tiki_preferences` WHERE `name` = 'feed_forums_desc' AND (`value` = '' OR `value` IS NULL);
DELETE FROM `tiki_preferences` WHERE `name` = 'feed_forums_title' AND (`value` = '' OR `value` IS NULL);
DELETE FROM `tiki_preferences` WHERE `name` = 'feed_image_galleries_desc' AND (`value` = '' OR `value` IS NULL);
DELETE FROM `tiki_preferences` WHERE `name` = 'feed_image_galleries_title' AND (`value` = '' OR `value` IS NULL);
DELETE FROM `tiki_preferences` WHERE `name` = 'feed_image_gallery_desc' AND (`value` = '' OR `value` IS NULL);
DELETE FROM `tiki_preferences` WHERE `name` = 'feed_image_gallery_title' AND (`value` = '' OR `value` IS NULL);
DELETE FROM `tiki_preferences` WHERE `name` = 'feed_maps_desc' AND (`value` = '' OR `value` IS NULL);
DELETE FROM `tiki_preferences` WHERE `name` = 'feed_maps_title' AND (`value` = '' OR `value` IS NULL);
DELETE FROM `tiki_preferences` WHERE `name` = 'feed_shoutbox_desc' AND (`value` = '' OR `value` IS NULL);
DELETE FROM `tiki_preferences` WHERE `name` = 'feed_shoutbox_title' AND (`value` = '' OR `value` IS NULL);
DELETE FROM `tiki_preferences` WHERE `name` = 'feed_tracker_desc' AND (`value` = '' OR `value` IS NULL);
DELETE FROM `tiki_preferences` WHERE `name` = 'feed_tracker_title' AND (`value` = '' OR `value` IS NULL);
DELETE FROM `tiki_preferences` WHERE `name` = 'feed_trackers_desc' AND (`value` = '' OR `value` IS NULL);
DELETE FROM `tiki_preferences` WHERE `name` = 'feed_trackers_title' AND (`value` = '' OR `value` IS NULL);
DELETE FROM `tiki_preferences` WHERE `name` = 'feed_wiki_desc' AND (`value` = '' OR `value` IS NULL);
DELETE FROM `tiki_preferences` WHERE `name` = 'feed_wiki_title' AND (`value` = '' OR `value` IS NULL);
