A mechanism is disclosed for selecting an authorization filter to apply when executing a database query, based on the focus of the database query. Based on the focus specified for a given of the query, different conditions may be added during query processing to a database query. Doing so provides a...http://www.google.com.tw/patents/US7774355?utm_source=gb-gplus-share專利 US7774355 - Dynamic authorization based on focus data
