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:
Jun. 26, 2012
Filed:
Jun. 14, 2010
Kosuke Yanai, Kokubunji, JP;
Yasutsugu Morimoto, Kodaira, JP;
Hisashi Ikeda, Kunitachi, JP;
Yosiyuki Kobayasi, Sayama, JP;
Kosuke Yanai, Kokubunji, JP;
Yasutsugu Morimoto, Kodaira, JP;
Hisashi Ikeda, Kunitachi, JP;
Yosiyuki Kobayasi, Sayama, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
For hierarchical data including tuples each including a combination of different data types and lists each listing data of a same data type, corresponding attribute-based data divided by attribute is stored in attribute-based files whereas information on the structure of the hierarchical data is held as schema information. The schema information includes data type information on the hierarchical data structure, including data type information on each element of each tuple and data type information on only a top element of each list. The attribute-based files storing the attribute-based data are managed to be in order by a file name management table. Data on each attribute is stored in a file in a state of being hierarchized in a list format corresponding to the depth at which the each attribute is listed in the schema information. When performing analysis processing: a required attribute is specified; files of only the specified attribute are opened; the initial data structure is restored using the schema information; and data analysis processing is performed.