发明名称 |
DATABASE MANAGEMENT SERVER APPARATUS, DATABASE MANAGEMENT SYSTEM, DATABASE MANAGEMENT METHOD AND DATABASE MANAGEMENT PROGRAM |
摘要 |
Provided is a database management server apparatus that can maintain the consistency of updates and prevent blocking other update requests in an update process. A server apparatus 3 of a database management system 1 has a function of nondestructively updating databases in response to an update request from a client apparatus 2 to manage generation-management databases. A main storage unit 4 stores entities of a plurality of databases for each version of the databases, and a version creating unit 5 creates a new version of the databases in response to an update request from a client apparatus. A request accepting unit 11 accepts an update request for a next version regardless of whether the new version is being created. An acceptance management unit 13 starts a period for accepting the update request for the next version in response to the update request and ends the period for accepting after a predetermined time. A version creating unit 5 creates the next version based on the update request accepted in the period for accepting.
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申请公布号 |
US2010145914(A1) |
申请公布日期 |
2010.06.10 |
申请号 |
US20090472680 |
申请日期 |
2009.05.27 |
申请人 |
PANASONIC CORPORATION |
发明人 |
KANNO YUJI;INABA MITSUAKI |
分类号 |
G06F17/00;G06F12/00 |
主分类号 |
G06F17/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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