The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 13, 2013
Filed:
Aug. 19, 2009
Akira Shimizu, Kokubunji, JP;
Kazutomo Ushijima, Fuchu, JP;
Seisuke Tokuda, Hachioji, JP;
Michiko Tanaka, Kokubunji, JP;
Shinji Fujiwara, Sagamihara, JP;
Nobuo Kawamura, Atsugi, JP;
Akira Shimizu, Kokubunji, JP;
Kazutomo Ushijima, Fuchu, JP;
Seisuke Tokuda, Hachioji, JP;
Michiko Tanaka, Kokubunji, JP;
Shinji Fujiwara, Sagamihara, JP;
Nobuo Kawamura, Atsugi, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
Provided is a database system in which sorting of query results is sped up. The database system stores storage location information in which storage locations of the pieces of data are recorded in a given order. When there is no second task, which is executed based on data that is fetched in a first task, whether every piece of data requested in a third task, which is executed before the first task, has been fetched is determined. In the case where every piece of data requested in the third task has been fetched, data fetched in the first task is output. In the case where some of the data requested in the third task has not been fetched, data fetched in the first task is kept in a temporary buffer until every piece of data requested in the third task is fetched, and then output.