Using permissions and masks to secure data

You can use permissions and masks to prevent data from being accessed.

IBM Advanced Data Security for i introduces row and column access control (RCAC), as a data-centric security alternative. RCAC allows access to a table at the row level, column level, or both. RCAC can be used to complement the table privileges model. RCAC as an alternative to keyed logical files alleviates that database from maintaining these additional indexes.