发明名称 DATABASE DEVICE, CACHE DEVICE, DATABASE SYSTEM, CACHE MAINTENANCE METHOD AND PROGRAM THEREOF
摘要 PROBLEM TO BE SOLVED: To reduce the load of cache maintenance processing in a database system. SOLUTION: The database device obtains the latest cache entry on a cache 231 by a cache track part of the cache device 200, and records it on a cache management table 1312. The database device refers to the cache management table 1312, upon update processing of the a base table 1311, to identify data on the base table 1311 which is affected by the update processing of the base table 1311 and exists on the cache 231. The database device transmits a destruction message for the cache entry of the identified data to the cache device 200. The cache device 200 destroys the cache entry on the cache 231 designated by the destruction message. COPYRIGHT: (C)2011,JPO&INPIT
申请公布号 JP2011028658(A) 申请公布日期 2011.02.10
申请号 JP20090175924 申请日期 2009.07.28
申请人 NIPPON TELEGR & TELEPH CORP 发明人 MIKAMI KEITA;ONIZUKA MAKOTO
分类号 G06F12/00;G06F12/08;G06F12/12 主分类号 G06F12/00
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