Indexing method of database management system

专利名称：Indexing method of database management

system

发明人：Daisuke Ito,Kazutomo Ushijima,Akira Shimizu申请号：US114838申请日：20060711公开号：US07617265B2公开日：20091110

专利附图：

摘要：When operating a database management system that consists of a plurality ofdatabase servers and enables the database servers to transfer data between them bypartitioning a data area into small areas and altering allocation of the small areas to the

database servers, after altering the configuration, there occurs degradation in processingspeed that accompanies re-creation of the index. If this problem is solved by using theconventional technique, noticeable degradation in processing speed will occur to aspecific query at the time of a steady state operation. When operating the databasemanagement system that consists of the plurality of database servers and enables thedatabase servers to transfer data between them by partitioning the database area intosmall areas and altering the allocation of the small areas to the database server, an indexcreated for each of the small areas and an index to all the small areas allocated to thedatabase server are used in combination.

申请人：Daisuke Ito,Kazutomo Ushijima,Akira Shimizu

地址：Kokubunji JP,Kokubunji JP,Kokubunji JP

国籍：JP,JP,JP

代理机构：Mattingly & Malur, P.C.

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