| 摘要 |
A system ( 10 ) for retrieving data from a database ( 22 ) using a data management system ( 20 ) includes a change retrieval engine ( 50 ) that is coupled to the data management system ( 20 ). The change retrieval engine ( 50 ) determines that data in the database ( 22 ) managed by the data management system ( 20 ) has been changed and receives information from the data management system ( 20 ) identifying one or more categories with which the changed data is associated. The change retrieval engine ( 50 ) also accesses a data model ( 54 ) to identify data to be retrieved from the database ( 22 ) using the data management system ( 20 ) according to the received information. The data model ( 54 ) identifies data related to the categories. Furthermore, the change retrieval engine ( 50 ) requests the data identified by the data model ( 54 ) from the data management system ( 20 ) and receives the data from the data management system ( 20 ). The change retrieval engine ( 50 ) stores the data in a data log ( 74 ) and communicates a transfer command. The system also includes a change transfer engine ( 90 ) that is coupled to the change retrieval engine ( 50 ). The change transfer engine ( 90 ) receives the transfer command, obtains the data from the data log ( 74 ), and communicates the data to an external system ( 40 ). |
