A method and apparatus controls access to data in a database by configuring at least part of the database such that at least some of the data of the configured database is associated with a security tag, configuring a storage structure of user identifiers and associated user tags configuring...http://www.google.fr/patents/US5787428?utm_source=gb-gplus-shareBrevet US5787428 - Control of database access using security/user tag correspondence table
Control of database access using security/user tag correspondence table