DATABASE UPDATE MANAGEMENT SYSTEM, PROGRAM, AND METHOD

摘要

PROBLEM TO BE SOLVED: To prevent the occurrence of deadlock in the case of updating processing for a plurality of databases by a plurality of simultaneous parallel transactions. SOLUTION: This database update management system 110 includes: an access order storage part 111 for preliminarily storing the order of access to a plurality of databases; a data request receiving part 112 for receiving a data request to data in a database to be updated from a transaction; a data load part 115 for loading data as the object of data request from the database to a virtual data region; an update data storage part for storing information to specify the updated data according as the data in the virtual data region have been updated by the transaction; and a data sorting part 119 for sorting the stored information according to the order of access according as the transaction has been completed wherein the database is updated by using the sorted information. COPYRIGHT: (C)2008,JPO&INPIT