发明名称 |
DATABASE MANAGEMENT DEVICE, DATABASE MANAGEMENT METHOD, AND STORAGE MEDIUM |
摘要 |
Provided is a database management device, comprising a processor, a memory, and a storage device, whereby a database which is stored in the storage device is managed, said database management device further comprising: a query acceptance unit which accepts a query to the database; a query execution plan generating unit which generates a query execution plan which includes a database operation which is necessary for executing the accepted query; and a query execution unit which, in executing the accepted query on the basis of the generated query execution plan, dynamically generates a task for executing the database operation, and executes the dynamically generated task. The query execution unit acquires a resource usage state, and, when executing the next database operation, generates a new task on the basis of the resource usage state, and executes the new task in parallel with the said task. |
申请公布号 |
WO2015029208(A1) |
申请公布日期 |
2015.03.05 |
申请号 |
WO2013JP73271 |
申请日期 |
2013.08.30 |
申请人 |
HITACHI, LTD.;THE UNIVERSITY OF TOKYO |
发明人 |
SHIMIZU, AKIRA;FUJIWARA, SHINJI;MOGI, KAZUHIKO;KAWAMURA, NOBUO;GODA, KAZUO;KITSUREGAWA, MASARU |
分类号 |
G06F12/00;G06F17/30 |
主分类号 |
G06F12/00 |
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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