Abstract:
A cache management system using a cache register in a mobile database system includes a mobile cache manager (31, 41 ) and a mobile cache register (11 ). The mobile cache manager (31, 41 ) in a mobile support station (30, 40) manages a mobile cache that is an integration of data caches of terminals (70, 80, 90) supported by the mobile support station (30, 40) and transmits data to the terminal (70, 80, 90) in case the data requested by the terminal (70, 80, 90) exists in the mobile cache. The mobile cache register (11) in a fixed host (10) moves the data cache from the mobile cache of the terminal (70, 80, 90) to another mobile cache and instructs the mobile cache manager (31, 41 ) to approve a data item access request of the terminal (70, 80, 90).