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:
Apr. 17, 2012
Filed:
Jan. 12, 2009
Applicants:
Kenichi Kaku, Sagamihara, JP;
Norihiro Hara, Kawasaki, JP;
Kohji Kimura, Fujisawa, JP;
Inventors:
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 17/30 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a database management apparatus for managing a database where an index is used in a search for data, the data is stored in a table that has attributes of the data as columns. The index is created in association with at least one column. The columns include an index key column for which the index is created without data being stored. Upon reception of a request to register the data in the table including the index key column, the data in columns other than the index key column is registered. An index of the index key column is updated using data corresponding to the index key column.