Job management system that determines if master data has been updated, then re-executes a sub-job based on available executing computers and data sharing status

摘要

In a computer system of the present invention, whether or not master data has been updated is managed for each division key as master data management information. If the master data has been updated, a job is re-executed, but when the job is re-executed, data is divided using only a division key corresponding to updated master data, and thereby a sub-job which is a re-execution target is localized with the division key unit so as to re-execute a job.