Patent · US Active

Database system and method of optimizing cross database query

US8768915B2 · kind B2 · utility

3Cited by

3References

16Claims

0Family size

Assignee

International Business Machines Corporation · US

Inventors

Bo Gao · Lo Wu, CN
Chang Jie Guo · Bound Brook, US
Zhong Bo Jiang · Beijing, CN
Wei Sun · Beijing, CN
Kai Tang · Longbeilingcun, CN
Feng Wang · Beijing, CN

Key dates

Filing date	Oct 29, 2010
Grant date	Jul 1, 2014
Priority date	—
Expiry date	May 1, 2033

Classification

Technology area (CPC G)Physics
CPC primaryG06F16/2471
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A database system and a method of optimizing cross-database query. The database system includes a plurality of databases. At least two of the databases are stored with one or more data collections composed of tables with the same structure. A federated view of the data collection is created on each of the databases. A request routing layer for routing, in response to a query request crossing the data collections, the query request crossing the data collections to one of the at least two databases according to a predetermined routing rule, so as to query by using the federated view of the database.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.