Abstract: Methods, systems, data structures and articles of manufacture are provided for monitoring access to a database. In one embodiment, a data access trigger, or read trigger, is adapted to monitor accesses to a database. In general, a data access trigger is invoked when predefined events occur. Specifically, a data access trigger is executed to take some action due to any attempt to access a database. When a specified access attempt is determined, the trigger can instruct the system to take any number of actions, such as modify the data being requested. In one embodiment, a log is provided in which accesses to the database are recorded. The log may subsequently reviewed to ascertain whether a particular record was accessed and by whom. In addition, the particular information accessed and/or modified can be contained in the log.

Abstract: Methods, systems, data structures and articles of manufacture are provided for monitoring access to a database. In one embodiment, a data access trigger, or read trigger, is adapted to monitor accesses to a database. In general, a data access trigger is invoked when predefined events occur. Specifically, a data access trigger is executed to take some action due to any attempt to access a database. When a specified access attempt is determined, the trigger can instruct the system to take any number of actions, such as modify the data being requested.

Abstract: A method and computer program product are provided for implementing skip key processing for database grouping queries involving aggregate operations using one or more indices in a computer system. First checking for a selected entry in a current group in a primary file is performed. Responsive to finding the selected entry in the current group, the set of records of the current group is ordered to provide an aggregate value in an aggregate field of the current group. Then checking for an excluded value in the aggregate field of the current group is performed. Responsive to not finding the excluded value in the aggregate field, a current entry is saved as a result for the group. Then checking for more groups in the primary file is performed. Responsive to finding more groups in the primary file, a unique key or prefix to the query index is obtained to position to a next group. When the selected entry in the next group is not found, then checking for more groups in the primary file is performed.