Database duplicating method, database duplicating apparatus, database creating method, and database creating apparatus

摘要

A database duplicating apparatus that extracts a data group stored in a database to duplicate a database includes a data extracting unit that sequentially extracts a plurality of data included in the data group; an update monitor that monitors an update status of a data content of the data extracted by the data extracting unit; an update-log storing unit that, when the update monitor detects an update of the data content, stores a content of the update as an update log; and a correcting unit that corrects a content of data extracted by the data extracting unit based on the update log.