Abstract: An anatomical ring device for attachment to a penis includes a ring body defining an interior opening that is shaped and sized to receive a penis. A stimulation unit is disposed on one side of the ring body. A discrete stimulation element is movably disposed on the stimulation unit. A motor is disposed within the stimulation unit. The motor is operably connected to the discrete stimulation element to cause independent movement thereof relative to the stimulation unit.

Abstract: An anatomical ring device for attachment to a penis includes a ring body defining an interior opening that is shaped and sized to receive a penis. A stimulation unit is disposed on one side of the ring body. A discrete stimulation element is movably disposed on the stimulation unit. A motor is disposed within the stimulation unit. The motor is operably connected to the discrete stimulation element to cause independent movement thereof relative to the stimulation unit.

Abstract: In a Redis-based database data aggregation and synchronization method, a synchronization program scans data of a table of a target database, calculates and stores a Key and a Value of each row into a Redis, while writing the row into an aggregation database. When there is a change of data in the table of the target database, the synchronization program re-calculates a new Key and a new Value of each row in the target database and inquires whether a key same as the new Key exists in the Redis to update the data in the aggregation database, and then perform a difference set calculation for the data after the synchronization of the primary key set of the table of the target database and the corresponding primary key set of the table of the aggregation database, and delete the data from the aggregation database by determining whether or an element exists in the difference set.

Abstract: In a Redis-based database data aggregation and synchronization method, a synchronization program scans data of a table of a target database, calculates and stores a Key and a Value of each row into a Redis, while writing the row into an aggregation database. When there is a change of data in the table of the target database, the synchronization program re-calculates a new Key and a new Value of each row in the target database and inquires whether a key same as the new Key exists in the Redis to update the data in the aggregation database, and then perform a difference set calculation for the data after the synchronization of the primary key set of the table of the target database and the corresponding primary key set of the table of the aggregation database, and delete the data from the aggregation database by determining whether or an element exists in the difference set.