| 摘要 |
Client databases are synchronised by storing a synchronisation engine (10) maintaining a synchronisation table (20) of record identifiers and change indicators for records of the client databases. The table (20) is used during a synchronisation session and is maintained persistent between sessions. All client databases (DBA-DBD) are synchronised in a session. Values for identifiers and change indicators are received from the client databases and are compared with the stored values to determine if a record has changed. The current value is thus identified. All of the client databases are updated with current value of a record and updating the synchronisation table is updated for a next synchronisation session. |
