| 摘要 |
Provided is a database management system coupled to a storage system comprising a first storage device for storing a database file and a control file, a second storage device for storing a journal corresponding to an update history of the data stored in the first storage device, and a third storage device for storing a log file; generating the journal upon receiving an update instruction; and recording the generated journal to the second storage device in correspondence with a check point. The database management system records the log to the third storage device in correspondence with identification information of the generated check point, restores data stored in the storage system by employing a journal stored in the second storage device before check point, and applies the log stored in the third storage device after the check point to restore a database file. |
