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专利名称：Integrating databases
发明人：Takeshi Fukuda,Ryoji Kurosawa,Masahiro
Ohkawa
申请号：US11926504申请日：20071029公开号：US065912B2公开日：20150224
专利附图：
摘要：A system for integrating databases comprises a first virtual table, a secondvirtual table, a common table, a list, a generating section, and a selecting section. The firstvirtual table corresponds to a first data. The second virtual table corresponds to a
second data. The common table is associated with the first and second virtual tables. Thelist indicates information about associations between the first and second virtual tablesand the common table. The generating section generates two or more access plans froma database query on the common table. The two or more access plans involve at leastone of the first and second virtual tables in accordance with the list. The selecting sectionselects one of the two or more access plans generated by the generating section to beused to execute the database query.
申请人：Takeshi Fukuda,Ryoji Kurosawa,Masahiro Ohkawa
地址：Machida JP,Yokohama JP,Kanagawa JP
国籍：JP,JP,JP
代理机构：DeLizio Gilliam, PLLC
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