Update management apparatus and update management method

A computer-readable storage medium that stores an update management program that causes a computer to process an update request when the update request occurs in any one of a plurality of databases storing a prescribed schema set that is distributed and hierarchically associated, the update management program causing the computer to execute a process comprising:

• storing, in advance, in a storing unit, reference relation for specifying other database storing a related schema set that needs to be updated in accordance with an update of a structure of a schema set stored in a database that is a request source of the update request to ensure consistency with a structure of a schema set stored in a database that is an original source of the update request;
• deciding whether a content of the update request is related to a structure change of the schema set;
• extracting, when the content of the update request is related to the structure change of the schema set at the deciding, on the basis of the reference relation stored in the storing unit at the storing, other database storing an associated schema set that needs to be updated to ensure the consistency and then deciding whether to approve an update of the extracted database;
• and
• sending an update approval/disapproval decision result decided at the deciding the update of the extracted database to the database that is the original source of the update request.

An update management apparatus that performs a process with respect to an update request when the update request occurs in any one of a plurality of databases storing a prescribed schema set that is distributed and hierarchically associated, the update management apparatus comprising:

• a reference relation storing unit that stores, in advance, reference relation for specifying other database storing a related schema set that needs to be updated in accordance with an update of a structure of a schema set stored in a database that is a request source of the update request to ensure consistency with a structure of a schema set stored in a database that is an original source of the update request;
• an update-content decision unit that decides whether a content of the update request is related to a structure change of the schema set;
• an update approval/disapproval deciding unit that extracts, when the update-content decision unit decides that the content of the update request is related to the structure change of the schema set, on the basis of the reference relation stored by the reference relation storing unit, other database storing an associated schema set that needs to be updated to ensure the consistency and decides whether to approve an update of the extracted database;
• and
• an update approval/disapproval decision result sending unit that sends an update approval/disapproval decision result decided by the update approval/disapproval deciding unit to the database that is the original source of the update request.