Abstract: The present invention relates to simultaneous transfer of database updates between multiple clients and a server. A plurality of (potentially limited resource) clients simultaneously establishes (e.g., TCP) connections to a server. Database updates are efficiently transferred between the server and each of the plurality of clients simultaneously. Server resources are utilized at the server to resolve any data conflicts such that the limited resources (e.g., system memory) of any clients are conserved. Clients that receive database updates overwrite existing client database with the received database updates. In preparation for receiving a database update, clients can empty a client database such that a received database update is more efficiently written into the client database.