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:
Oct. 20, 2020
Filed:
Apr. 13, 2015
Applicant:
Hitachi, Ltd., Tokyo, JP;
Inventors:
Takayuki Tsuchida, Tokyo, JP;
Michiko Tanaka, Tokyo, JP;
Akira Shimizu, Tokyo, JP;
Shinji Fujiwara, Tokyo, JP;
Kazuhiko Mogi, Tokyo, JP;
Assignee:
HITACHI, LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 17/00 (2019.01); G06F 16/22 (2019.01); G06F 16/23 (2019.01); G06F 16/2455 (2019.01); G06F 16/00 (2019.01); G06F 16/21 (2019.01); G06F 3/06 (2006.01);
U.S. Cl.
CPC ...
G06F 16/221 (2019.01); G06F 3/064 (2013.01); G06F 3/067 (2013.01); G06F 3/0611 (2013.01); G06F 16/00 (2019.01); G06F 16/211 (2019.01); G06F 16/2365 (2019.01); G06F 16/2455 (2019.01);
Abstract
A database includes a plurality of data blocks. Each of the plurality of data blocks includes a plurality of data pages in which a plurality of column values recorded in one or more records corresponding to the data block are stored. Each of the plurality of data pages has two or more column values in one column corresponding to the data page stored therein. A database server selects a data block from the plurality of data blocks and specifies a data page to be scanned from the selected data block.