| 摘要 |
The invention discloses a data storage aiding method and system. A data storage system is in a three-level structure of a DB (database), an LDB (lasting database) and an MDB (memory database). When an application system sends out a search request, the MDB is searched first; if the MDB is missed, searched data is returned by searching the LDB, and searched data in the LDB are written back into the MDB; if the LDB is missed, searched data are returned by searching the DB, and the searched data in the DB are written back into the LDB. The method includes: judging whether or not data in the DB are modified; if yes, modifying corresponding data in the LDB, invalidating the corresponding data in the MDB so that the MDB is searched when the application system sends out the search request for the modified data, and after the MDB is missed, returning the modified data by searching the LDB. The data storage aiding method and system has the advantages that read request processing stress s of the database can be decreased and responding efficiency of a write request can be increased. |
