Research on Data Synchronization Technology of Embedded MobileDatabase

This paper stresses on the Management algorithm of Client Cache in Embedded Mobile Database, and mainly extends on three aspects: the Replacement Algorithm, Prefetching Algorithm, and non-consistency of data. The Cache Management of mobile device is based on the mobile database running on multi-disk broadcast environment, which is characterized as not requiring upload channel. In this case, the client can continuously receive expected data stream without sending requests to the server. On the other hand, according to client access requests, the server can attempt to broadcast the data item in sequence so as to make different data items broadcast at different frequencies.